[chore] update viper version (#2539)

* update viper version

* removes our last uses of the slice package

* fix tests

7 files changed, 169 insertions, 773 deletions

diff --git a/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go b/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go
index 0454cdd78..333676b7c 100644
--- a/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go
+++ b/vendor/golang.org/x/tools/go/internal/packagesdriver/sizes.go
@@ -13,16 +13,17 @@ import (
 	"golang.org/x/tools/internal/gocommand"
 )
 
-var debug = false
-
 func GetSizesForArgsGolist(ctx context.Context, inv gocommand.Invocation, gocmdRunner *gocommand.Runner) (string, string, error) {
 	inv.Verb = "list"
 	inv.Args = []string{"-f", "{{context.GOARCH}} {{context.Compiler}}", "--", "unsafe"}
 	stdout, stderr, friendlyErr, rawErr := gocmdRunner.RunRaw(ctx, inv)
 	var goarch, compiler string
 	if rawErr != nil {
-		if rawErrMsg := rawErr.Error(); strings.Contains(rawErrMsg, "cannot find main module") || strings.Contains(rawErrMsg, "go.mod file not found") {
-			// User's running outside of a module. All bets are off. Get GOARCH and guess compiler is gc.
+		rawErrMsg := rawErr.Error()
+		if strings.Contains(rawErrMsg, "cannot find main module") ||
+			strings.Contains(rawErrMsg, "go.mod file not found") {
+			// User's running outside of a module.
+			// All bets are off. Get GOARCH and guess compiler is gc.
 			// TODO(matloob): Is this a problem in practice?
 			inv.Verb = "env"
 			inv.Args = []string{"GOARCH"}
@@ -32,8 +33,12 @@ func GetSizesForArgsGolist(ctx context.Context, inv gocommand.Invocation, gocmdR
 			}
 			goarch = strings.TrimSpace(envout.String())
 			compiler = "gc"
-		} else {
+		} else if friendlyErr != nil {
 			return "", "", friendlyErr
+		} else {
+			// This should be unreachable, but be defensive
+			// in case RunRaw's error results are inconsistent.
+			return "", "", rawErr
 		}
 	} else {
 		fields := strings.Fields(stdout.String())
diff --git a/vendor/golang.org/x/tools/go/packages/doc.go b/vendor/golang.org/x/tools/go/packages/doc.go
index da4ab89fe..b2a0b7c6a 100644
--- a/vendor/golang.org/x/tools/go/packages/doc.go
+++ b/vendor/golang.org/x/tools/go/packages/doc.go
@@ -5,12 +5,32 @@
 /*
 Package packages loads Go packages for inspection and analysis.
 
-The Load function takes as input a list of patterns and return a list of Package
-structs describing individual packages matched by those patterns.
-The LoadMode controls the amount of detail in the loaded packages.
-
-Load passes most patterns directly to the underlying build tool,
-but all patterns with the prefix "query=", where query is a
+The [Load] function takes as input a list of patterns and returns a
+list of [Package] values describing individual packages matched by those
+patterns.
+A [Config] specifies configuration options, the most important of which is
+the [LoadMode], which controls the amount of detail in the loaded packages.
+
+Load passes most patterns directly to the underlying build tool.
+The default build tool is the go command.
+Its supported patterns are described at
+https://pkg.go.dev/cmd/go#hdr-Package_lists_and_patterns.
+
+Load may be used in Go projects that use alternative build systems, by
+installing an appropriate "driver" program for the build system and
+specifying its location in the GOPACKAGESDRIVER environment variable.
+For example,
+https://github.com/bazelbuild/rules_go/wiki/Editor-and-tool-integration
+explains how to use the driver for Bazel.
+The driver program is responsible for interpreting patterns in its
+preferred notation and reporting information about the packages that
+they identify.
+(See driverRequest and driverResponse types for the JSON
+schema used by the protocol.
+Though the protocol is supported, these types are currently unexported;
+see #64608 for a proposal to publish them.)
+
+Regardless of driver, all patterns with the prefix "query=", where query is a
 non-empty string of letters from [a-z], are reserved and may be
 interpreted as query operators.
 
@@ -35,7 +55,7 @@ The Package struct provides basic information about the package, including
   - Imports, a map from source import strings to the Packages they name;
   - Types, the type information for the package's exported symbols;
   - Syntax, the parsed syntax trees for the package's source code; and
-  - TypeInfo, the result of a complete type-check of the package syntax trees.
+  - TypesInfo, the result of a complete type-check of the package syntax trees.
 
 (See the documentation for type Package for the complete list of fields
 and more detailed descriptions.)
@@ -64,7 +84,7 @@ reported about the loaded packages. See the documentation for type LoadMode
 for details.
 
 Most tools should pass their command-line arguments (after any flags)
-uninterpreted to the loader, so that the loader can interpret them
+uninterpreted to [Load], so that it can interpret them
 according to the conventions of the underlying build system.
 See the Example function for typical usage.
 */
diff --git a/vendor/golang.org/x/tools/go/packages/external.go b/vendor/golang.org/x/tools/go/packages/external.go
index 7242a0a7d..7db1d1293 100644
--- a/vendor/golang.org/x/tools/go/packages/external.go
+++ b/vendor/golang.org/x/tools/go/packages/external.go
@@ -12,8 +12,8 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	exec "golang.org/x/sys/execabs"
 	"os"
+	"os/exec"
 	"strings"
 )
 
diff --git a/vendor/golang.org/x/tools/go/packages/golist.go b/vendor/golang.org/x/tools/go/packages/golist.go
index b5de9cf9f..cd375fbc3 100644
--- a/vendor/golang.org/x/tools/go/packages/golist.go
+++ b/vendor/golang.org/x/tools/go/packages/golist.go
@@ -9,9 +9,9 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
-	"io/ioutil"
 	"log"
 	"os"
+	"os/exec"
 	"path"
 	"path/filepath"
 	"reflect"
@@ -21,7 +21,6 @@ import (
 	"sync"
 	"unicode"
 
-	exec "golang.org/x/sys/execabs"
 	"golang.org/x/tools/go/internal/packagesdriver"
 	"golang.org/x/tools/internal/gocommand"
 	"golang.org/x/tools/internal/packagesinternal"
@@ -209,62 +208,6 @@ extractQueries:
 		}
 	}
 
-	// Only use go/packages' overlay processing if we're using a Go version
-	// below 1.16. Otherwise, go list handles it.
-	if goVersion, err := state.getGoVersion(); err == nil && goVersion < 16 {
-		modifiedPkgs, needPkgs, err := state.processGolistOverlay(response)
-		if err != nil {
-			return nil, err
-		}
-
-		var containsCandidates []string
-		if len(containFiles) > 0 {
-			containsCandidates = append(containsCandidates, modifiedPkgs...)
-			containsCandidates = append(containsCandidates, needPkgs...)
-		}
-		if err := state.addNeededOverlayPackages(response, needPkgs); err != nil {
-			return nil, err
-		}
-		// Check candidate packages for containFiles.
-		if len(containFiles) > 0 {
-			for _, id := range containsCandidates {
-				pkg, ok := response.seenPackages[id]
-				if !ok {
-					response.addPackage(&Package{
-						ID: id,
-						Errors: []Error{{
-							Kind: ListError,
-							Msg:  fmt.Sprintf("package %s expected but not seen", id),
-						}},
-					})
-					continue
-				}
-				for _, f := range containFiles {
-					for _, g := range pkg.GoFiles {
-						if sameFile(f, g) {
-							response.addRoot(id)
-						}
-					}
-				}
-			}
-		}
-		// Add root for any package that matches a pattern. This applies only to
-		// packages that are modified by overlays, since they are not added as
-		// roots automatically.
-		for _, pattern := range restPatterns {
-			match := matchPattern(pattern)
-			for _, pkgID := range modifiedPkgs {
-				pkg, ok := response.seenPackages[pkgID]
-				if !ok {
-					continue
-				}
-				if match(pkg.PkgPath) {
-					response.addRoot(pkg.ID)
-				}
-			}
-		}
-	}
-
 	sizeswg.Wait()
 	if sizeserr != nil {
 		return nil, sizeserr
@@ -272,24 +215,6 @@ extractQueries:
 	return response.dr, nil
 }
 
-func (state *golistState) addNeededOverlayPackages(response *responseDeduper, pkgs []string) error {
-	if len(pkgs) == 0 {
-		return nil
-	}
-	dr, err := state.createDriverResponse(pkgs...)
-	if err != nil {
-		return err
-	}
-	for _, pkg := range dr.Packages {
-		response.addPackage(pkg)
-	}
-	_, needPkgs, err := state.processGolistOverlay(response)
-	if err != nil {
-		return err
-	}
-	return state.addNeededOverlayPackages(response, needPkgs)
-}
-
 func (state *golistState) runContainsQueries(response *responseDeduper, queries []string) error {
 	for _, query := range queries {
 		// TODO(matloob): Do only one query per directory.
@@ -1109,7 +1034,7 @@ func (state *golistState) writeOverlays() (filename string, cleanup func(), err
 	if len(state.cfg.Overlay) == 0 {
 		return "", func() {}, nil
 	}
-	dir, err := ioutil.TempDir("", "gopackages-*")
+	dir, err := os.MkdirTemp("", "gopackages-*")
 	if err != nil {
 		return "", nil, err
 	}
@@ -1128,7 +1053,7 @@ func (state *golistState) writeOverlays() (filename string, cleanup func(), err
 		// Create a unique filename for the overlaid files, to avoid
 		// creating nested directories.
 		noSeparator := strings.Join(strings.Split(filepath.ToSlash(k), "/"), "")
-		f, err := ioutil.TempFile(dir, fmt.Sprintf("*-%s", noSeparator))
+		f, err := os.CreateTemp(dir, fmt.Sprintf("*-%s", noSeparator))
 		if err != nil {
 			return "", func() {}, err
 		}
@@ -1146,7 +1071,7 @@ func (state *golistState) writeOverlays() (filename string, cleanup func(), err
 	}
 	// Write out the overlay file that contains the filepath mappings.
 	filename = filepath.Join(dir, "overlay.json")
-	if err := ioutil.WriteFile(filename, b, 0665); err != nil {
+	if err := os.WriteFile(filename, b, 0665); err != nil {
 		return "", func() {}, err
 	}
 	return filename, cleanup, nil
diff --git a/vendor/golang.org/x/tools/go/packages/golist_overlay.go b/vendor/golang.org/x/tools/go/packages/golist_overlay.go
index 9576b472f..d823c474a 100644
--- a/vendor/golang.org/x/tools/go/packages/golist_overlay.go
+++ b/vendor/golang.org/x/tools/go/packages/golist_overlay.go
@@ -6,314 +6,11 @@ package packages
 
 import (
 	"encoding/json"
-	"fmt"
-	"go/parser"
-	"go/token"
-	"os"
 	"path/filepath"
-	"regexp"
-	"sort"
-	"strconv"
-	"strings"
 
 	"golang.org/x/tools/internal/gocommand"
 )
 
-// processGolistOverlay provides rudimentary support for adding
-// files that don't exist on disk to an overlay. The results can be
-// sometimes incorrect.
-// TODO(matloob): Handle unsupported cases, including the following:
-// - determining the correct package to add given a new import path
-func (state *golistState) processGolistOverlay(response *responseDeduper) (modifiedPkgs, needPkgs []string, err error) {
-	havePkgs := make(map[string]string) // importPath -> non-test package ID
-	needPkgsSet := make(map[string]bool)
-	modifiedPkgsSet := make(map[string]bool)
-
-	pkgOfDir := make(map[string][]*Package)
-	for _, pkg := range response.dr.Packages {
-		// This is an approximation of import path to id. This can be
-		// wrong for tests, vendored packages, and a number of other cases.
-		havePkgs[pkg.PkgPath] = pkg.ID
-		dir, err := commonDir(pkg.GoFiles)
-		if err != nil {
-			return nil, nil, err
-		}
-		if dir != "" {
-			pkgOfDir[dir] = append(pkgOfDir[dir], pkg)
-		}
-	}
-
-	// If no new imports are added, it is safe to avoid loading any needPkgs.
-	// Otherwise, it's hard to tell which package is actually being loaded
-	// (due to vendoring) and whether any modified package will show up
-	// in the transitive set of dependencies (because new imports are added,
-	// potentially modifying the transitive set of dependencies).
-	var overlayAddsImports bool
-
-	// If both a package and its test package are created by the overlay, we
-	// need the real package first. Process all non-test files before test
-	// files, and make the whole process deterministic while we're at it.
-	var overlayFiles []string
-	for opath := range state.cfg.Overlay {
-		overlayFiles = append(overlayFiles, opath)
-	}
-	sort.Slice(overlayFiles, func(i, j int) bool {
-		iTest := strings.HasSuffix(overlayFiles[i], "_test.go")
-		jTest := strings.HasSuffix(overlayFiles[j], "_test.go")
-		if iTest != jTest {
-			return !iTest // non-tests are before tests.
-		}
-		return overlayFiles[i] < overlayFiles[j]
-	})
-	for _, opath := range overlayFiles {
-		contents := state.cfg.Overlay[opath]
-		base := filepath.Base(opath)
-		dir := filepath.Dir(opath)
-		var pkg *Package           // if opath belongs to both a package and its test variant, this will be the test variant
-		var testVariantOf *Package // if opath is a test file, this is the package it is testing
-		var fileExists bool
-		isTestFile := strings.HasSuffix(opath, "_test.go")
-		pkgName, ok := extractPackageName(opath, contents)
-		if !ok {
-			// Don't bother adding a file that doesn't even have a parsable package statement
-			// to the overlay.
-			continue
-		}
-		// If all the overlay files belong to a different package, change the
-		// package name to that package.
-		maybeFixPackageName(pkgName, isTestFile, pkgOfDir[dir])
-	nextPackage:
-		for _, p := range response.dr.Packages {
-			if pkgName != p.Name && p.ID != "command-line-arguments" {
-				continue
-			}
-			for _, f := range p.GoFiles {
-				if !sameFile(filepath.Dir(f), dir) {
-					continue
-				}
-				// Make sure to capture information on the package's test variant, if needed.
-				if isTestFile && !hasTestFiles(p) {
-					// TODO(matloob): Are there packages other than the 'production' variant
-					// of a package that this can match? This shouldn't match the test main package
-					// because the file is generated in another directory.
-					testVariantOf = p
-					continue nextPackage
-				} else if !isTestFile && hasTestFiles(p) {
-					// We're examining a test variant, but the overlaid file is
-					// a non-test file. Because the overlay implementation
-					// (currently) only adds a file to one package, skip this
-					// package, so that we can add the file to the production
-					// variant of the package. (https://golang.org/issue/36857
-					// tracks handling overlays on both the production and test
-					// variant of a package).
-					continue nextPackage
-				}
-				if pkg != nil && p != pkg && pkg.PkgPath == p.PkgPath {
-					// We have already seen the production version of the
-					// for which p is a test variant.
-					if hasTestFiles(p) {
-						testVariantOf = pkg
-					}
-				}
-				pkg = p
-				if filepath.Base(f) == base {
-					fileExists = true
-				}
-			}
-		}
-		// The overlay could have included an entirely new package or an
-		// ad-hoc package. An ad-hoc package is one that we have manually
-		// constructed from inadequate `go list` results for a file= query.
-		// It will have the ID command-line-arguments.
-		if pkg == nil || pkg.ID == "command-line-arguments" {
-			// Try to find the module or gopath dir the file is contained in.
-			// Then for modules, add the module opath to the beginning.
-			pkgPath, ok, err := state.getPkgPath(dir)
-			if err != nil {
-				return nil, nil, err
-			}
-			if !ok {
-				break
-			}
-			var forTest string // only set for x tests
-			isXTest := strings.HasSuffix(pkgName, "_test")
-			if isXTest {
-				forTest = pkgPath
-				pkgPath += "_test"
-			}
-			id := pkgPath
-			if isTestFile {
-				if isXTest {
-					id = fmt.Sprintf("%s [%s.test]", pkgPath, forTest)
-				} else {
-					id = fmt.Sprintf("%s [%s.test]", pkgPath, pkgPath)
-				}
-			}
-			if pkg != nil {
-				// TODO(rstambler): We should change the package's path and ID
-				// here. The only issue is that this messes with the roots.
-			} else {
-				// Try to reclaim a package with the same ID, if it exists in the response.
-				for _, p := range response.dr.Packages {
-					if reclaimPackage(p, id, opath, contents) {
-						pkg = p
-						break
-					}
-				}
-				// Otherwise, create a new package.
-				if pkg == nil {
-					pkg = &Package{
-						PkgPath: pkgPath,
-						ID:      id,
-						Name:    pkgName,
-						Imports: make(map[string]*Package),
-					}
-					response.addPackage(pkg)
-					havePkgs[pkg.PkgPath] = id
-					// Add the production package's sources for a test variant.
-					if isTestFile && !isXTest && testVariantOf != nil {
-						pkg.GoFiles = append(pkg.GoFiles, testVariantOf.GoFiles...)
-						pkg.CompiledGoFiles = append(pkg.CompiledGoFiles, testVariantOf.CompiledGoFiles...)
-						// Add the package under test and its imports to the test variant.
-						pkg.forTest = testVariantOf.PkgPath
-						for k, v := range testVariantOf.Imports {
-							pkg.Imports[k] = &Package{ID: v.ID}
-						}
-					}
-					if isXTest {
-						pkg.forTest = forTest
-					}
-				}
-			}
-		}
-		if !fileExists {
-			pkg.GoFiles = append(pkg.GoFiles, opath)
-			// TODO(matloob): Adding the file to CompiledGoFiles can exhibit the wrong behavior
-			// if the file will be ignored due to its build tags.
-			pkg.CompiledGoFiles = append(pkg.CompiledGoFiles, opath)
-			modifiedPkgsSet[pkg.ID] = true
-		}
-		imports, err := extractImports(opath, contents)
-		if err != nil {
-			// Let the parser or type checker report errors later.
-			continue
-		}
-		for _, imp := range imports {
-			// TODO(rstambler): If the package is an x test and the import has
-			// a test variant, make sure to replace it.
-			if _, found := pkg.Imports[imp]; found {
-				continue
-			}
-			overlayAddsImports = true
-			id, ok := havePkgs[imp]
-			if !ok {
-				var err error
-				id, err = state.resolveImport(dir, imp)
-				if err != nil {
-					return nil, nil, err
-				}
-			}
-			pkg.Imports[imp] = &Package{ID: id}
-			// Add dependencies to the non-test variant version of this package as well.
-			if testVariantOf != nil {
-				testVariantOf.Imports[imp] = &Package{ID: id}
-			}
-		}
-	}
-
-	// toPkgPath guesses the package path given the id.
-	toPkgPath := func(sourceDir, id string) (string, error) {
-		if i := strings.IndexByte(id, ' '); i >= 0 {
-			return state.resolveImport(sourceDir, id[:i])
-		}
-		return state.resolveImport(sourceDir, id)
-	}
-
-	// Now that new packages have been created, do another pass to determine
-	// the new set of missing packages.
-	for _, pkg := range response.dr.Packages {
-		for _, imp := range pkg.Imports {
-			if len(pkg.GoFiles) == 0 {
-				return nil, nil, fmt.Errorf("cannot resolve imports for package %q with no Go files", pkg.PkgPath)
-			}
-			pkgPath, err := toPkgPath(filepath.Dir(pkg.GoFiles[0]), imp.ID)
-			if err != nil {
-				return nil, nil, err
-			}
-			if _, ok := havePkgs[pkgPath]; !ok {
-				needPkgsSet[pkgPath] = true
-			}
-		}
-	}
-
-	if overlayAddsImports {
-		needPkgs = make([]string, 0, len(needPkgsSet))
-		for pkg := range needPkgsSet {
-			needPkgs = append(needPkgs, pkg)
-		}
-	}
-	modifiedPkgs = make([]string, 0, len(modifiedPkgsSet))
-	for pkg := range modifiedPkgsSet {
-		modifiedPkgs = append(modifiedPkgs, pkg)
-	}
-	return modifiedPkgs, needPkgs, err
-}
-
-// resolveImport finds the ID of a package given its import path.
-// In particular, it will find the right vendored copy when in GOPATH mode.
-func (state *golistState) resolveImport(sourceDir, importPath string) (string, error) {
-	env, err := state.getEnv()
-	if err != nil {
-		return "", err
-	}
-	if env["GOMOD"] != "" {
-		return importPath, nil
-	}
-
-	searchDir := sourceDir
-	for {
-		vendorDir := filepath.Join(searchDir, "vendor")
-		exists, ok := state.vendorDirs[vendorDir]
-		if !ok {
-			info, err := os.Stat(vendorDir)
-			exists = err == nil && info.IsDir()
-			state.vendorDirs[vendorDir] = exists
-		}
-
-		if exists {
-			vendoredPath := filepath.Join(vendorDir, importPath)
-			if info, err := os.Stat(vendoredPath); err == nil && info.IsDir() {
-				// We should probably check for .go files here, but shame on anyone who fools us.
-				path, ok, err := state.getPkgPath(vendoredPath)
-				if err != nil {
-					return "", err
-				}
-				if ok {
-					return path, nil
-				}
-			}
-		}
-
-		// We know we've hit the top of the filesystem when we Dir / and get /,
-		// or C:\ and get C:\, etc.
-		next := filepath.Dir(searchDir)
-		if next == searchDir {
-			break
-		}
-		searchDir = next
-	}
-	return importPath, nil
-}
-
-func hasTestFiles(p *Package) bool {
-	for _, f := range p.GoFiles {
-		if strings.HasSuffix(f, "_test.go") {
-			return true
-		}
-	}
-	return false
-}
-
 // determineRootDirs returns a mapping from absolute directories that could
 // contain code to their corresponding import path prefixes.
 func (state *golistState) determineRootDirs() (map[string]string, error) {
@@ -384,192 +81,3 @@ func (state *golistState) determineRootDirsGOPATH() (map[string]string, error) {
 	}
 	return m, nil
 }
-
-func extractImports(filename string, contents []byte) ([]string, error) {
-	f, err := parser.ParseFile(token.NewFileSet(), filename, contents, parser.ImportsOnly) // TODO(matloob): reuse fileset?
-	if err != nil {
-		return nil, err
-	}
-	var res []string
-	for _, imp := range f.Imports {
-		quotedPath := imp.Path.Value
-		path, err := strconv.Unquote(quotedPath)
-		if err != nil {
-			return nil, err
-		}
-		res = append(res, path)
-	}
-	return res, nil
-}
-
-// reclaimPackage attempts to reuse a package that failed to load in an overlay.
-//
-// If the package has errors and has no Name, GoFiles, or Imports,
-// then it's possible that it doesn't yet exist on disk.
-func reclaimPackage(pkg *Package, id string, filename string, contents []byte) bool {
-	// TODO(rstambler): Check the message of the actual error?
-	// It differs between $GOPATH and module mode.
-	if pkg.ID != id {
-		return false
-	}
-	if len(pkg.Errors) != 1 {
-		return false
-	}
-	if pkg.Name != "" || pkg.ExportFile != "" {
-		return false
-	}
-	if len(pkg.GoFiles) > 0 || len(pkg.CompiledGoFiles) > 0 || len(pkg.OtherFiles) > 0 {
-		return false
-	}
-	if len(pkg.Imports) > 0 {
-		return false
-	}
-	pkgName, ok := extractPackageName(filename, contents)
-	if !ok {
-		return false
-	}
-	pkg.Name = pkgName
-	pkg.Errors = nil
-	return true
-}
-
-func extractPackageName(filename string, contents []byte) (string, bool) {
-	// TODO(rstambler): Check the message of the actual error?
-	// It differs between $GOPATH and module mode.
-	f, err := parser.ParseFile(token.NewFileSet(), filename, contents, parser.PackageClauseOnly) // TODO(matloob): reuse fileset?
-	if err != nil {
-		return "", false
-	}
-	return f.Name.Name, true
-}
-
-// commonDir returns the directory that all files are in, "" if files is empty,
-// or an error if they aren't in the same directory.
-func commonDir(files []string) (string, error) {
-	seen := make(map[string]bool)
-	for _, f := range files {
-		seen[filepath.Dir(f)] = true
-	}
-	if len(seen) > 1 {
-		return "", fmt.Errorf("files (%v) are in more than one directory: %v", files, seen)
-	}
-	for k := range seen {
-		// seen has only one element; return it.
-		return k, nil
-	}
-	return "", nil // no files
-}
-
-// It is possible that the files in the disk directory dir have a different package
-// name from newName, which is deduced from the overlays. If they all have a different
-// package name, and they all have the same package name, then that name becomes
-// the package name.
-// It returns true if it changes the package name, false otherwise.
-func maybeFixPackageName(newName string, isTestFile bool, pkgsOfDir []*Package) {
-	names := make(map[string]int)
-	for _, p := range pkgsOfDir {
-		names[p.Name]++
-	}
-	if len(names) != 1 {
-		// some files are in different packages
-		return
-	}
-	var oldName string
-	for k := range names {
-		oldName = k
-	}
-	if newName == oldName {
-		return
-	}
-	// We might have a case where all of the package names in the directory are
-	// the same, but the overlay file is for an x test, which belongs to its
-	// own package. If the x test does not yet exist on disk, we may not yet
-	// have its package name on disk, but we should not rename the packages.
-	//
-	// We use a heuristic to determine if this file belongs to an x test:
-	// The test file should have a package name whose package name has a _test
-	// suffix or looks like "newName_test".
-	maybeXTest := strings.HasPrefix(oldName+"_test", newName) || strings.HasSuffix(newName, "_test")
-	if isTestFile && maybeXTest {
-		return
-	}
-	for _, p := range pkgsOfDir {
-		p.Name = newName
-	}
-}
-
-// This function is copy-pasted from
-// https://github.com/golang/go/blob/9706f510a5e2754595d716bd64be8375997311fb/src/cmd/go/internal/search/search.go#L360.
-// It should be deleted when we remove support for overlays from go/packages.
-//
-// NOTE: This does not handle any ./... or ./ style queries, as this function
-// doesn't know the working directory.
-//
-// matchPattern(pattern)(name) reports whether
-// name matches pattern. Pattern is a limited glob
-// pattern in which '...' means 'any string' and there
-// is no other special syntax.
-// Unfortunately, there are two special cases. Quoting "go help packages":
-//
-// First, /... at the end of the pattern can match an empty string,
-// so that net/... matches both net and packages in its subdirectories, like net/http.
-// Second, any slash-separated pattern element containing a wildcard never
-// participates in a match of the "vendor" element in the path of a vendored
-// package, so that ./... does not match packages in subdirectories of
-// ./vendor or ./mycode/vendor, but ./vendor/... and ./mycode/vendor/... do.
-// Note, however, that a directory named vendor that itself contains code
-// is not a vendored package: cmd/vendor would be a command named vendor,
-// and the pattern cmd/... matches it.
-func matchPattern(pattern string) func(name string) bool {
-	// Convert pattern to regular expression.
-	// The strategy for the trailing /... is to nest it in an explicit ? expression.
-	// The strategy for the vendor exclusion is to change the unmatchable
-	// vendor strings to a disallowed code point (vendorChar) and to use
-	// "(anything but that codepoint)*" as the implementation of the ... wildcard.
-	// This is a bit complicated but the obvious alternative,
-	// namely a hand-written search like in most shell glob matchers,
-	// is too easy to make accidentally exponential.
-	// Using package regexp guarantees linear-time matching.
-
-	const vendorChar = "\x00"
-
-	if strings.Contains(pattern, vendorChar) {
-		return func(name string) bool { return false }
-	}
-
-	re := regexp.QuoteMeta(pattern)
-	re = replaceVendor(re, vendorChar)
-	switch {
-	case strings.HasSuffix(re, `/`+vendorChar+`/\.\.\.`):
-		re = strings.TrimSuffix(re, `/`+vendorChar+`/\.\.\.`) + `(/vendor|/` + vendorChar + `/\.\.\.)`
-	case re == vendorChar+`/\.\.\.`:
-		re = `(/vendor|/` + vendorChar + `/\.\.\.)`
-	case strings.HasSuffix(re, `/\.\.\.`):
-		re = strings.TrimSuffix(re, `/\.\.\.`) + `(/\.\.\.)?`
-	}
-	re = strings.ReplaceAll(re, `\.\.\.`, `[^`+vendorChar+`]*`)
-
-	reg := regexp.MustCompile(`^` + re + `$`)
-
-	return func(name string) bool {
-		if strings.Contains(name, vendorChar) {
-			return false
-		}
-		return reg.MatchString(replaceVendor(name, vendorChar))
-	}
-}
-
-// replaceVendor returns the result of replacing
-// non-trailing vendor path elements in x with repl.
-func replaceVendor(x, repl string) string {
-	if !strings.Contains(x, "vendor") {
-		return x
-	}
-	elem := strings.Split(x, "/")
-	for i := 0; i < len(elem)-1; i++ {
-		if elem[i] == "vendor" {
-			elem[i] = repl
-		}
-	}
-	return strings.Join(elem, "/")
-}
diff --git a/vendor/golang.org/x/tools/go/packages/packages.go b/vendor/golang.org/x/tools/go/packages/packages.go
index 124a6fe14..81e9e6a72 100644
--- a/vendor/golang.org/x/tools/go/packages/packages.go
+++ b/vendor/golang.org/x/tools/go/packages/packages.go
@@ -16,7 +16,6 @@ import (
 	"go/token"
 	"go/types"
 	"io"
-	"io/ioutil"
 	"log"
 	"os"
 	"path/filepath"
@@ -28,8 +27,8 @@ import (
 	"golang.org/x/tools/go/gcexportdata"
 	"golang.org/x/tools/internal/gocommand"
 	"golang.org/x/tools/internal/packagesinternal"
-	"golang.org/x/tools/internal/typeparams"
 	"golang.org/x/tools/internal/typesinternal"
+	"golang.org/x/tools/internal/versions"
 )
 
 // A LoadMode controls the amount of detail to return when loading.
@@ -259,31 +258,52 @@ type driverResponse struct {
 // proceeding with further analysis. The PrintErrors function is
 // provided for convenient display of all errors.
 func Load(cfg *Config, patterns ...string) ([]*Package, error) {
-	l := newLoader(cfg)
-	response, err := defaultDriver(&l.Config, patterns...)
+	ld := newLoader(cfg)
+	response, external, err := defaultDriver(&ld.Config, patterns...)
 	if err != nil {
 		return nil, err
 	}
-	l.sizes = types.SizesFor(response.Compiler, response.Arch)
-	return l.refine(response)
+
+	ld.sizes = types.SizesFor(response.Compiler, response.Arch)
+	if ld.sizes == nil && ld.Config.Mode&(NeedTypes|NeedTypesSizes|NeedTypesInfo) != 0 {
+		// Type size information is needed but unavailable.
+		if external {
+			// An external driver may fail to populate the Compiler/GOARCH fields,
+			// especially since they are relatively new (see #63700).
+			// Provide a sensible fallback in this case.
+			ld.sizes = types.SizesFor("gc", runtime.GOARCH)
+			if ld.sizes == nil { // gccgo-only arch
+				ld.sizes = types.SizesFor("gc", "amd64")
+			}
+		} else {
+			// Go list should never fail to deliver accurate size information.
+			// Reject the whole Load since the error is the same for every package.
+			return nil, fmt.Errorf("can't determine type sizes for compiler %q on GOARCH %q",
+				response.Compiler, response.Arch)
+		}
+	}
+
+	return ld.refine(response)
 }
 
 // defaultDriver is a driver that implements go/packages' fallback behavior.
 // It will try to request to an external driver, if one exists. If there's
 // no external driver, or the driver returns a response with NotHandled set,
 // defaultDriver will fall back to the go list driver.
-func defaultDriver(cfg *Config, patterns ...string) (*driverResponse, error) {
-	driver := findExternalDriver(cfg)
-	if driver == nil {
-		driver = goListDriver
-	}
-	response, err := driver(cfg, patterns...)
-	if err != nil {
-		return response, err
-	} else if response.NotHandled {
-		return goListDriver(cfg, patterns...)
+// The boolean result indicates that an external driver handled the request.
+func defaultDriver(cfg *Config, patterns ...string) (*driverResponse, bool, error) {
+	if driver := findExternalDriver(cfg); driver != nil {
+		response, err := driver(cfg, patterns...)
+		if err != nil {
+			return nil, false, err
+		} else if !response.NotHandled {
+			return response, true, nil
+		}
+		// (fall through)
 	}
-	return response, nil
+
+	response, err := goListDriver(cfg, patterns...)
+	return response, false, err
 }
 
 // A Package describes a loaded Go package.
@@ -412,12 +432,6 @@ func init() {
 	packagesinternal.GetDepsErrors = func(p interface{}) []*packagesinternal.PackageError {
 		return p.(*Package).depsErrors
 	}
-	packagesinternal.GetGoCmdRunner = func(config interface{}) *gocommand.Runner {
-		return config.(*Config).gocmdRunner
-	}
-	packagesinternal.SetGoCmdRunner = func(config interface{}, runner *gocommand.Runner) {
-		config.(*Config).gocmdRunner = runner
-	}
 	packagesinternal.SetModFile = func(config interface{}, value string) {
 		config.(*Config).modFile = value
 	}
@@ -554,7 +568,7 @@ type loaderPackage struct {
 type loader struct {
 	pkgs map[string]*loaderPackage
 	Config
-	sizes        types.Sizes
+	sizes        types.Sizes // non-nil if needed by mode
 	parseCache   map[string]*parseValue
 	parseCacheMu sync.Mutex
 	exportMu     sync.Mutex // enforces mutual exclusion of exportdata operations
@@ -679,39 +693,38 @@ func (ld *loader) refine(response *driverResponse) ([]*Package, error) {
 		}
 	}
 
-	// Materialize the import graph.
-
-	const (
-		white = 0 // new
-		grey  = 1 // in progress
-		black = 2 // complete
-	)
-
-	// visit traverses the import graph, depth-first,
-	// and materializes the graph as Packages.Imports.
-	//
-	// Valid imports are saved in the Packages.Import map.
-	// Invalid imports (cycles and missing nodes) are saved in the importErrors map.
-	// Thus, even in the presence of both kinds of errors, the Import graph remains a DAG.
-	//
-	// visit returns whether the package needs src or has a transitive
-	// dependency on a package that does. These are the only packages
-	// for which we load source code.
-	var stack []*loaderPackage
-	var visit func(lpkg *loaderPackage) bool
-	var srcPkgs []*loaderPackage
-	visit = func(lpkg *loaderPackage) bool {
-		switch lpkg.color {
-		case black:
-			return lpkg.needsrc
-		case grey:
-			panic("internal error: grey node")
-		}
-		lpkg.color = grey
-		stack = append(stack, lpkg) // push
-		stubs := lpkg.Imports       // the structure form has only stubs with the ID in the Imports
-		// If NeedImports isn't set, the imports fields will all be zeroed out.
-		if ld.Mode&NeedImports != 0 {
+	if ld.Mode&NeedImports != 0 {
+		// Materialize the import graph.
+
+		const (
+			white = 0 // new
+			grey  = 1 // in progress
+			black = 2 // complete
+		)
+
+		// visit traverses the import graph, depth-first,
+		// and materializes the graph as Packages.Imports.
+		//
+		// Valid imports are saved in the Packages.Import map.
+		// Invalid imports (cycles and missing nodes) are saved in the importErrors map.
+		// Thus, even in the presence of both kinds of errors,
+		// the Import graph remains a DAG.
+		//
+		// visit returns whether the package needs src or has a transitive
+		// dependency on a package that does. These are the only packages
+		// for which we load source code.
+		var stack []*loaderPackage
+		var visit func(lpkg *loaderPackage) bool
+		visit = func(lpkg *loaderPackage) bool {
+			switch lpkg.color {
+			case black:
+				return lpkg.needsrc
+			case grey:
+				panic("internal error: grey node")
+			}
+			lpkg.color = grey
+			stack = append(stack, lpkg) // push
+			stubs := lpkg.Imports       // the structure form has only stubs with the ID in the Imports
 			lpkg.Imports = make(map[string]*Package, len(stubs))
 			for importPath, ipkg := range stubs {
 				var importErr error
@@ -735,40 +748,39 @@ func (ld *loader) refine(response *driverResponse) ([]*Package, error) {
 				}
 				lpkg.Imports[importPath] = imp.Package
 			}
-		}
-		if lpkg.needsrc {
-			srcPkgs = append(srcPkgs, lpkg)
-		}
-		if ld.Mode&NeedTypesSizes != 0 {
-			lpkg.TypesSizes = ld.sizes
-		}
-		stack = stack[:len(stack)-1] // pop
-		lpkg.color = black
 
-		return lpkg.needsrc
-	}
+			// Complete type information is required for the
+			// immediate dependencies of each source package.
+			if lpkg.needsrc && ld.Mode&NeedTypes != 0 {
+				for _, ipkg := range lpkg.Imports {
+					ld.pkgs[ipkg.ID].needtypes = true
+				}
+			}
 
-	if ld.Mode&NeedImports == 0 {
-		// We do this to drop the stub import packages that we are not even going to try to resolve.
-		for _, lpkg := range initial {
-			lpkg.Imports = nil
+			// NeedTypeSizes causes TypeSizes to be set even
+			// on packages for which types aren't needed.
+			if ld.Mode&NeedTypesSizes != 0 {
+				lpkg.TypesSizes = ld.sizes
+			}
+			stack = stack[:len(stack)-1] // pop
+			lpkg.color = black
+
+			return lpkg.needsrc
 		}
-	} else {
+
 		// For each initial package, create its import DAG.
 		for _, lpkg := range initial {
 			visit(lpkg)
 		}
-	}
-	if ld.Mode&NeedImports != 0 && ld.Mode&NeedTypes != 0 {
-		for _, lpkg := range srcPkgs {
-			// Complete type information is required for the
-			// immediate dependencies of each source package.
-			for _, ipkg := range lpkg.Imports {
-				imp := ld.pkgs[ipkg.ID]
-				imp.needtypes = true
-			}
+
+	} else {
+		// !NeedImports: drop the stub (ID-only) import packages
+		// that we are not even going to try to resolve.
+		for _, lpkg := range initial {
+			lpkg.Imports = nil
 		}
 	}
+
 	// Load type data and syntax if needed, starting at
 	// the initial packages (roots of the import DAG).
 	if ld.Mode&NeedTypes != 0 || ld.Mode&NeedSyntax != 0 {
@@ -1002,10 +1014,11 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) {
 		Defs:       make(map[*ast.Ident]types.Object),
 		Uses:       make(map[*ast.Ident]types.Object),
 		Implicits:  make(map[ast.Node]types.Object),
+		Instances:  make(map[*ast.Ident]types.Instance),
 		Scopes:     make(map[ast.Node]*types.Scope),
 		Selections: make(map[*ast.SelectorExpr]*types.Selection),
 	}
-	typeparams.InitInstanceInfo(lpkg.TypesInfo)
+	versions.InitFileVersions(lpkg.TypesInfo)
 	lpkg.TypesSizes = ld.sizes
 
 	importer := importerFunc(func(path string) (*types.Package, error) {
@@ -1043,7 +1056,7 @@ func (ld *loader) loadPackage(lpkg *loaderPackage) {
 		IgnoreFuncBodies: ld.Mode&NeedDeps == 0 && !lpkg.initial,
 
 		Error: appendError,
-		Sizes: ld.sizes,
+		Sizes: ld.sizes, // may be nil
 	}
 	if lpkg.Module != nil && lpkg.Module.GoVersion != "" {
 		typesinternal.SetGoVersion(tc, "go"+lpkg.Module.GoVersion)
@@ -1127,7 +1140,7 @@ func (ld *loader) parseFile(filename string) (*ast.File, error) {
 		var err error
 		if src == nil {
 			ioLimit <- true // wait
-			src, err = ioutil.ReadFile(filename)
+			src, err = os.ReadFile(filename)
 			<-ioLimit // signal
 		}
 		if err != nil {
diff --git a/vendor/golang.org/x/tools/go/types/objectpath/objectpath.go b/vendor/golang.org/x/tools/go/types/objectpath/objectpath.go
index fa5834baf..11d5c8c3a 100644
--- a/vendor/golang.org/x/tools/go/types/objectpath/objectpath.go
+++ b/vendor/golang.org/x/tools/go/types/objectpath/objectpath.go
@@ -26,13 +26,10 @@ package objectpath
 import (
 	"fmt"
 	"go/types"
-	"sort"
 	"strconv"
 	"strings"
-	_ "unsafe"
 
 	"golang.org/x/tools/internal/typeparams"
-	"golang.org/x/tools/internal/typesinternal"
 )
 
 // A Path is an opaque name that identifies a types.Object
@@ -123,20 +120,7 @@ func For(obj types.Object) (Path, error) {
 // An Encoder amortizes the cost of encoding the paths of multiple objects.
 // The zero value of an Encoder is ready to use.
 type Encoder struct {
-	scopeMemo         map[*types.Scope][]types.Object // memoization of scopeObjects
-	namedMethodsMemo  map[*types.Named][]*types.Func  // memoization of namedMethods()
-	skipMethodSorting bool
-}
-
-// Expose back doors so that gopls can avoid method sorting, which can dominate
-// analysis on certain repositories.
-//
-// TODO(golang/go#61443): remove this.
-func init() {
-	typesinternal.SkipEncoderMethodSorting = func(enc interface{}) {
-		enc.(*Encoder).skipMethodSorting = true
-	}
-	typesinternal.ObjectpathObject = object
+	scopeMemo map[*types.Scope][]types.Object // memoization of scopeObjects
 }
 
 // For returns the path to an object relative to its package,
@@ -239,7 +223,7 @@ func (enc *Encoder) For(obj types.Object) (Path, error) {
 	//    Reject obviously non-viable cases.
 	switch obj := obj.(type) {
 	case *types.TypeName:
-		if _, ok := obj.Type().(*typeparams.TypeParam); !ok {
+		if _, ok := obj.Type().(*types.TypeParam); !ok {
 			// With the exception of type parameters, only package-level type names
 			// have a path.
 			return "", fmt.Errorf("no path for %v", obj)
@@ -299,7 +283,7 @@ func (enc *Encoder) For(obj types.Object) (Path, error) {
 			}
 		} else {
 			if named, _ := T.(*types.Named); named != nil {
-				if r := findTypeParam(obj, typeparams.ForNamed(named), path, nil); r != nil {
+				if r := findTypeParam(obj, named.TypeParams(), path, nil); r != nil {
 					// generic named type
 					return Path(r), nil
 				}
@@ -328,31 +312,18 @@ func (enc *Encoder) For(obj types.Object) (Path, error) {
 		// Inspect declared methods of defined types.
 		if T, ok := o.Type().(*types.Named); ok {
 			path = append(path, opType)
-			if !enc.skipMethodSorting {
-				// Note that method index here is always with respect
-				// to canonical ordering of methods, regardless of how
-				// they appear in the underlying type.
-				for i, m := range enc.namedMethods(T) {
-					path2 := appendOpArg(path, opMethod, i)
-					if m == obj {
-						return Path(path2), nil // found declared method
-					}
-					if r := find(obj, m.Type(), append(path2, opType), nil); r != nil {
-						return Path(r), nil
-					}
+			// The method index here is always with respect
+			// to the underlying go/types data structures,
+			// which ultimately derives from source order
+			// and must be preserved by export data.
+			for i := 0; i < T.NumMethods(); i++ {
+				m := T.Method(i)
+				path2 := appendOpArg(path, opMethod, i)
+				if m == obj {
+					return Path(path2), nil // found declared method
 				}
-			} else {
-				// This branch must match the logic in the branch above, using go/types
-				// APIs without sorting.
-				for i := 0; i < T.NumMethods(); i++ {
-					m := T.Method(i)
-					path2 := appendOpArg(path, opMethod, i)
-					if m == obj {
-						return Path(path2), nil // found declared method
-					}
-					if r := find(obj, m.Type(), append(path2, opType), nil); r != nil {
-						return Path(r), nil
-					}
+				if r := find(obj, m.Type(), append(path2, opType), nil); r != nil {
+					return Path(r), nil
 				}
 			}
 		}
@@ -448,22 +419,13 @@ func (enc *Encoder) concreteMethod(meth *types.Func) (Path, bool) {
 	path = append(path, name...)
 	path = append(path, opType)
 
-	if !enc.skipMethodSorting {
-		for i, m := range enc.namedMethods(named) {
-			if m == meth {
-				path = appendOpArg(path, opMethod, i)
-				return Path(path), true
-			}
-		}
-	} else {
-		// This branch must match the logic of the branch above, using go/types
-		// APIs without sorting.
-		for i := 0; i < named.NumMethods(); i++ {
-			m := named.Method(i)
-			if m == meth {
-				path = appendOpArg(path, opMethod, i)
-				return Path(path), true
-			}
+	// Method indices are w.r.t. the go/types data structures,
+	// ultimately deriving from source order,
+	// which is preserved by export data.
+	for i := 0; i < named.NumMethods(); i++ {
+		if named.Method(i) == meth {
+			path = appendOpArg(path, opMethod, i)
+			return Path(path), true
 		}
 	}
 
@@ -500,7 +462,7 @@ func find(obj types.Object, T types.Type, path []byte, seen map[*types.TypeName]
 		}
 		return find(obj, T.Elem(), append(path, opElem), seen)
 	case *types.Signature:
-		if r := findTypeParam(obj, typeparams.ForSignature(T), path, seen); r != nil {
+		if r := findTypeParam(obj, T.TypeParams(), path, seen); r != nil {
 			return r
 		}
 		if r := find(obj, T.Params(), append(path, opParams), seen); r != nil {
@@ -543,7 +505,7 @@ func find(obj types.Object, T types.Type, path []byte, seen map[*types.TypeName]
 			}
 		}
 		return nil
-	case *typeparams.TypeParam:
+	case *types.TypeParam:
 		name := T.Obj()
 		if name == obj {
 			return append(path, opObj)
@@ -563,7 +525,7 @@ func find(obj types.Object, T types.Type, path []byte, seen map[*types.TypeName]
 	panic(T)
 }
 
-func findTypeParam(obj types.Object, list *typeparams.TypeParamList, path []byte, seen map[*types.TypeName]bool) []byte {
+func findTypeParam(obj types.Object, list *types.TypeParamList, path []byte, seen map[*types.TypeName]bool) []byte {
 	for i := 0; i < list.Len(); i++ {
 		tparam := list.At(i)
 		path2 := appendOpArg(path, opTypeParam, i)
@@ -576,12 +538,7 @@ func findTypeParam(obj types.Object, list *typeparams.TypeParamList, path []byte
 
 // Object returns the object denoted by path p within the package pkg.
 func Object(pkg *types.Package, p Path) (types.Object, error) {
-	return object(pkg, string(p), false)
-}
-
-// Note: the skipMethodSorting parameter must match the value of
-// Encoder.skipMethodSorting used during encoding.
-func object(pkg *types.Package, pathstr string, skipMethodSorting bool) (types.Object, error) {
+	pathstr := string(p)
 	if pathstr == "" {
 		return nil, fmt.Errorf("empty path")
 	}
@@ -605,7 +562,7 @@ func object(pkg *types.Package, pathstr string, skipMethodSorting bool) (types.O
 	}
 	// abstraction of *types.{Named,Signature}
 	type hasTypeParams interface {
-		TypeParams() *typeparams.TypeParamList
+		TypeParams() *types.TypeParamList
 	}
 	// abstraction of *types.{Named,TypeParam}
 	type hasObj interface {
@@ -707,7 +664,7 @@ func object(pkg *types.Package, pathstr string, skipMethodSorting bool) (types.O
 			t = tparams.At(index)
 
 		case opConstraint:
-			tparam, ok := t.(*typeparams.TypeParam)
+			tparam, ok := t.(*types.TypeParam)
 			if !ok {
 				return nil, fmt.Errorf("cannot apply %q to %s (got %T, want type parameter)", code, t, t)
 			}
@@ -747,12 +704,7 @@ func object(pkg *types.Package, pathstr string, skipMethodSorting bool) (types.O
 				if index >= t.NumMethods() {
 					return nil, fmt.Errorf("method index %d out of range [0-%d)", index, t.NumMethods())
 				}
-				if skipMethodSorting {
-					obj = t.Method(index)
-				} else {
-					methods := namedMethods(t) // (unmemoized)
-					obj = methods[index]       // Id-ordered
-				}
+				obj = t.Method(index)
 
 			default:
 				return nil, fmt.Errorf("cannot apply %q to %s (got %T, want interface or named)", code, t, t)
@@ -779,33 +731,6 @@ func object(pkg *types.Package, pathstr string, skipMethodSorting bool) (types.O
 	return obj, nil // success
 }
 
-// namedMethods returns the methods of a Named type in ascending Id order.
-func namedMethods(named *types.Named) []*types.Func {
-	methods := make([]*types.Func, named.NumMethods())
-	for i := range methods {
-		methods[i] = named.Method(i)
-	}
-	sort.Slice(methods, func(i, j int) bool {
-		return methods[i].Id() < methods[j].Id()
-	})
-	return methods
-}
-
-// namedMethods is a memoization of the namedMethods function. Callers must not modify the result.
-func (enc *Encoder) namedMethods(named *types.Named) []*types.Func {
-	m := enc.namedMethodsMemo
-	if m == nil {
-		m = make(map[*types.Named][]*types.Func)
-		enc.namedMethodsMemo = m
-	}
-	methods, ok := m[named]
-	if !ok {
-		methods = namedMethods(named) // allocates and sorts
-		m[named] = methods
-	}
-	return methods
-}
-
 // scopeObjects is a memoization of scope objects.
 // Callers must not modify the result.
 func (enc *Encoder) scopeObjects(scope *types.Scope) []types.Object {