fdEnd := int(fd.End())

		if fdEnd != tfEnd {
			t.Errorf("%q: got fdEnd = %d; want %d (base = %d, size = %d)", src, fdEnd, tfEnd, tf.Base(), tf.Size())
		}
	}
}

// TestIssue28089 exercises the IsGenerated function.
func TestIssue28089(t *testing.T) {
	for i, test := range []struct {
		src  string
		want bool
	}{
		// No file comments.
		{`package p`, false},
		// Irrelevant file comments.
		{`// Package p doc.