Fix noSuchMethod handling of methods that are also extension methods. Fix noSuchMethod handling of …

tests/corelib_strong/dynamic_nosuchmethod_test.dart

+// Copyright (c) 2017, 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.
+
+import "package:expect/expect.dart";
+import 'dart:mirrors';
+
+// Test that noSuchMethod calls behave as expected for dynamic object invocations.
+class BaseClass {
+  final dynamic finalField = "final!";
+
+  baz() => "baz!!";
+  get bla => (() => "bla!!");
+}
+
+class ReturnInvocationName extends BaseClass {
+  var _bar;
+
+  ReturnInvocationName(this._bar);
+
+  noSuchMethod(Invocation invocation) {
+    return MirrorSystem.getName(invocation.memberName);
+  }
+
+  bar() {
+    return _bar;
+  }
+}
+
+class Foo {}
+
+main() {
+  dynamic x = new ReturnInvocationName(42);
+  Expect.equals('final!', x.finalField);
+
+  // https://github.com/dart-lang/sdk/issues/28363
+  // Expect.throws(() => x.finalField = "foo",
+  //              (e) => e is NoSuchMethodError);
+  Expect.equals('final!', x.finalField);
+
+  Expect.equals('_prototype', x._prototype);
+  Expect.equals('_prototype', x._prototype());
+
+  Expect.equals('prototype', x.prototype);
+  Expect.equals('prototype', x.prototype());
+
+  Expect.equals('constructor', x.constructor);
+  Expect.equals('constructor', x.constructor());
+
+  Expect.equals('__proto__', x.__proto__);
+  Expect.equals('__proto__', x.__proto__);
+
+  Expect.equals(42, x.bar());
+  Expect.equals(42, (x.bar)());
+
+  Expect.equals('unary-', -x);
+  Expect.equals('+', x + 42);
+  Expect.equals('[]', x[4]);
+
+  // Verify that noSuchMethod errors are triggered even when the JS object
+  // happens to have a matching member name.
+  dynamic f = new Foo();
+  Expect.throws(() => f.prototype, (e) => e is NoSuchMethodError);
+  Expect.throws(() => f.prototype(), (e) => e is NoSuchMethodError);
+  Expect.throws(() => f.prototype = 42, (e) => e is NoSuchMethodError);
+
+  Expect.throws(() => f.constructor, (e) => e is NoSuchMethodError);
+  Expect.throws(() => f.constructor(), (e) => e is NoSuchMethodError);
+  Expect.throws(() => f.constructor = 42, (e) => e is NoSuchMethodError);
+
+  Expect.throws(() => f.__proto__, (e) => e is NoSuchMethodError);
+
+  // These are valid JS properties but not Dart methods.
+  Expect.throws(() => f.toLocaleString, (e) => e is NoSuchMethodError);
+
+  Expect.throws(() => f.hasOwnProperty, (e) => e is NoSuchMethodError);
+}