@Test
public void testDoNotStripStruct() throws Exception {

  final String original = ""
      + "struct S { int a; };"
      + "void main() {"
      + "  S myS;"
      + "}";
  final TranslationUnit tu = ParseHelper.parse(original);
  StripUnusedGlobals.strip(tu);
  CompareAsts.assertEqualAsts(original, tu);
}