go/build: skip darwin/arm64 tests that need GOROOT

Just like darwin/arm.

Change-Id: I1a9f51c572c14b78d35ea62f52927f2bdc46e4c0
Reviewed-on: https://go-review.googlesource.com/8821Reviewed-by: Minux Ma <minux@golang.org>

src/go/build/build_test.go

@@ -109,8 +109,11 @@ func TestMultiplePackageImport(t *testing.T) {
 }
 
 func TestLocalDirectory(t *testing.T) {
-	if runtime.GOOS == "darwin" && runtime.GOARCH == "arm" {
-		t.Skipf("skipping on %s/%s, no valid GOROOT", runtime.GOOS, runtime.GOARCH)
+	if runtime.GOOS == "darwin" {
+		switch runtime.GOARCH {
+		case "arm", "arm64":
+			t.Skipf("skipping on %s/%s, no valid GOROOT", runtime.GOOS, runtime.GOARCH)
+		}
 	}
 
 	cwd, err := os.Getwd()
@@ -227,8 +230,11 @@ func TestMatchFile(t *testing.T) {
 }
 
 func TestImportCmd(t *testing.T) {
-	if runtime.GOOS == "darwin" && runtime.GOARCH == "arm" {
-		t.Skipf("skipping on %s/%s, no valid GOROOT", runtime.GOOS, runtime.GOARCH)
+	if runtime.GOOS == "darwin" {
+		switch runtime.GOARCH {
+		case "arm", "arm64":
+			t.Skipf("skipping on %s/%s, no valid GOROOT", runtime.GOOS, runtime.GOARCH)
+		}
 	}
 
 	p, err := Import("cmd/internal/objfile", "", 0)

src/go/build/deps_test.go

@@ -376,10 +376,11 @@ var allowedErrors = map[osPkg]bool{
 }
 
 func TestDependencies(t *testing.T) {
-	if runtime.GOOS == "nacl" || (runtime.GOOS == "darwin" && runtime.GOARCH == "arm") {
+	iOS := runtime.GOOS == "darwin" && (runtime.GOARCH == "arm" || runtime.GOARCH == "arm64")
+	if runtime.GOOS == "nacl" || iOS {
 		// Tests run in a limited file system and we do not
 		// provide access to every source file.
-		t.Skipf("skipping on %s/%s", runtime.GOOS, runtime.GOARCH)
+		t.Skipf("skipping on %s/%s, missing full GOROOT", runtime.GOOS, runtime.GOARCH)
 	}
 	var all []string