Revert "Add support for closure calls through getters."

tests/lib/mirrors/mirrors_nsm_test.dart

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-library MirrorsTest;
-
-import 'dart:mirrors';
-import 'package:expect/expect.dart';
-
-bool isNSMContainingFieldName(e, String fieldName, bool isSetter) {
-  print(e);
-  if (e is! NoSuchMethodError) return false;
-  String needle = fieldName;
-  if (isSetter) needle += "=";
-  return "$e".contains(needle) && ! "$e".contains(needle + "=");
-}
-
-class A {}
-
-main() {
-  var mirrors = currentMirrorSystem();
-  var libMirror = mirrors.findLibrary(#MirrorsTest);
-  Expect.throws(() => libMirror.invoke(#foo, []),
-                (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => libMirror.getField(#foo),
-                (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => libMirror.setField(#foo, null),             /// vm: ok
-                (e) => isNSMContainingFieldName(e, "foo", true)); /// vm: continued
-
-  var classMirror = reflect(A);
-  Expect.throws(() => classMirror.invoke(#foo, []),
-                (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => classMirror.getField(#foo),
-                (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => classMirror.setField(#foo, null),
-                (e) => isNSMContainingFieldName(e, "foo", true));
-
-  var instanceMirror = reflect(new A());
-  Expect.throws(() => instanceMirror.invoke(#foo, []),
-                (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => instanceMirror.getField(#foo),
-                (e) => isNSMContainingFieldName(e, "foo", false));
-  Expect.throws(() => instanceMirror.setField(#foo, null),
-                (e) => isNSMContainingFieldName(e, "foo", true));
-
-}