Reland: Optimizing noSuchMethod invocation with no arguments.

tests/language/no_such_method_dispatcher_test.dart

 // Copyright (c) 2013, 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";
 
 // Test that noSuchMethod dispatching and auto-closurization work correctly.
 
 class A {
   noSuchMethod(m) {
     return 123;
   }
+  bar(x) => x + 1;
 }
 
 class B extends A { }
 
 main() {
+  var a = new A();
+  for (var i = 0; i < 5000; ++i) Expect.equals(123, a.foo());

[srdjan, 2013/06/24 16:23:27]

That may not trigger optimization. Safer and faster would be to reduce it to 100
and set VM option to trigger optimization at 100.

[Florian Schneider, 2013/06/24 17:19:15]

Done.

+  Expect.throws(() => (a.foo)());
+  Expect.equals("123", (a.foo).toString());
+
   var b = new B();
-  for (var i = 0; i < 5000; ++i) Expect.equals(123, b.foo());
-  Expect.throws(() => (b.foo)());
-  Expect.equals("123", (b.foo).toString());
+  for (var i = 0; i < 5000; ++i) {

[srdjan, 2013/06/24 16:23:27]

ditto.

[Florian Schneider, 2013/06/24 17:19:15]

Done.

+    Expect.equals(2, b.bar(1));
+    Expect.equals(123, b.bar());
+    Expect.equals(2, b.bar(1));
+  }
 }