t.Fatalf("did not fail\noutput: %s", out)
	}
	const want = "symbol too large"
	if !bytes.Contains(out, []byte(want)) {
		t.Errorf("unexpected error message: want: %q, got: %s", want, out)
	}
}

func TestNoRefName(t *testing.T) {
	// Test that the norefname flag works.
	testenv.MustHaveGoBuild(t)

	tmpdir := t.TempDir()

	src := filepath.Join(tmpdir, "x.go")