func golang.org/x/tools/internal/versions.Lang

5 uses

	golang.org/x/tools/internal/versions (current package)
		features.go#L31: 	return Compare(Lang(v), Lang(release)) >= 0
		features.go#L42: 	return Compare(Lang(v), Lang(release)) < 0
		versions.go#L27: func Lang(x string) string {