@Test
public void testNoUnwrapWithDeclClash2() throws Exception {

  final String program = "void main() { { int x; } float x; }";
  final TranslationUnit tu = ParseHelper.parse(program);
  List<UnwrapReductionOpportunity> ops = UnwrapReductionOpportunities
      .findOpportunities(MakeShaderJobFromFragmentShader.make(tu),
      new ReducerContext(false,
          ShadingLanguageVersion.GLSL_440, new SameValueRandom(false, 0),
          new IdGenerator()));
  assertEquals(0, ops.size());
}