func (check *Checker) dump(format string, args ...any) {
	fmt.Println(sprintf(check.qualifier, true, format, args...))
}

func (check *Checker) qualifier(pkg *Package) string {
	// Qualify the package unless it's the package being type-checked.
	if pkg != check.pkg {
		if check.pkgPathMap == nil {
			check.pkgPathMap = make(map[string]map[string]bool)
			check.seenPkgMap = make(map[*Package]bool)
			check.markImports(check.pkg)
		}

			// p.Internal.Cover.GenMeta will wind up being set for
			// all matching packages.
			if len(p.TestGoFiles)+len(p.XTestGoFiles) == 0 &&
				cfg.BuildCoverPkg == nil &&
				cfg.Experiment.CoverageRedesign {
				p.Internal.Cover.GenMeta = true
			}
		}
	}

	// Prepare build + run + print actions for all packages being tested.
	for _, p := range pkgs {

The meta tag has the form:

	<meta name="go-import" content="import-prefix vcs repo-root">

The import-prefix is the import path corresponding to the repository
root. It must be a prefix or an exact match of the package being
fetched with "go get". If it's not an exact match, another http
request is made at the prefix to verify the <meta> tags match.

The meta tag should appear as early in the file as possible.

	line, col uint32
	trimmed   bool // whether -trimpath has been applied
}

// NewFileBase returns a new PosBase for the given filename.
// A file PosBase's position is relative to itself, with the
// position being filename:1:1.
func NewFileBase(filename string) *PosBase {
	return NewTrimmedFileBase(filename, false)
}

// NewTrimmedFileBase is like NewFileBase, but allows specifying Trimmed.

// defined, and because their full details may be spread across multiple
// declarations (via methods). For this reason they are type-checked lazily,
// to avoid information being accessed before it is complete.
//
// Conceptually, it is helpful to think of named types as having two distinct
// sets of information:
//  - "LHS" information, defining their identity: Obj() and TypeArgs()

		if i < 0 || i >= len(names) {
			if isError {
				sawUnmatchedErrors = true
			}
			continue
		}

		switch filename {
		case "completed":
			// Strictly speaking, there is no guarantee that seeing the error at completed:1
			// (at the end of the file) means we've seen all the errors from earlier in the file,
			// but usually it does. Certainly if we don't see the completed:1 error, we did

//		For example, instead of running asm, the go command will run
//		'cmd args /path/to/asm <arguments for asm>'.
//		The TOOLEXEC_IMPORTPATH environment variable will be set,
//		matching 'go list -f {{.ImportPath}}' for the package being built.
//
// The -asmflags, -gccgoflags, -gcflags, and -ldflags flags accept a
// space-separated list of arguments to pass to an underlying tool
// during the build. To embed spaces in an element in the list, surround

	}
	sort.Strings(list)
	return list
}

// InternalGoFiles returns the list of Go files being built for the package,
// using absolute paths.
func (p *Package) InternalGoFiles() []string {
	return p.mkAbs(str.StringList(p.GoFiles, p.CgoFiles, p.TestGoFiles))
}

// InternalXGoFiles returns the list of Go files being built for the XTest package,
// using absolute paths.
func (p *Package) InternalXGoFiles() []string {

		}
	})
}

// allowedVersionArg returns whether a token may be used as a version in go.mod.
// We don't call modfile.CheckPathVersion, because that insists on versions
// being in semver form, but here we want to allow versions like "master" or
// "1234abcdef", which the go command will resolve the next time it runs (or
// during -fix).  Even so, we need to make sure the version is a valid token.

			base.Fatalf("bad width")
		}
		if w == 0 && lastHasPtr {
			// Pad between a pointer-containing object and a zero-sized object.
			// This prevents a pointer to the zero-sized object from being interpreted
			// as a pointer to the pointer-containing object (and causing it
			// to be scanned when it shouldn't be). See issue 24993.
			w = 1
		}
		s.stksize += w