anchor.diff:    testUnparseMember('foo()native "this.x = 41";');
   }
   
  +testSimpleFileUnparse() {
  +  testDart2Dart('main() {}', (String s) {
  +  });
  +}
  +
   main() {
     testGenericTypes();
     testForLoop();
  
positive.code: testUnparseMember(String member) {
    Node node = parseMember(member);
    Expect.equals(member, node.unparse());
  }
  
  testGenericTypes() {
  
negative.code:   testClosure();
    testIndexedOperatorDecl();
    testNativeMethods();
    testSimpleFileUnparse();
  }
  