dart2js: Create noSuchMethod handlers at runtime to reduce overhead.

tests/language/overridden_no_such_method.dart

Index: tests/language/overridden_no_such_method.dart
diff --git a/tests/language/overridden_no_such_method.dart b/tests/language/overridden_no_such_method.dart
index b06fc5ccc40fdb33468a9e1c4b4c39b1f153ac32..127a53dcd74eee0f41db637304b56b010ada2a65 100644
--- a/tests/language/overridden_no_such_method.dart
+++ b/tests/language/overridden_no_such_method.dart
@@ -3,12 +3,18 @@
 // BSD-style license that can be found in the LICENSE file.
 // Dart test program testing overridden messageNotUnderstood.
 
+class GetName {
+  foo(a, b) => "foo";
+}
+
+String getName(im) => im.invokeOn(new GetName());
+
 class OverriddenNoSuchMethod {
 
   OverriddenNoSuchMethod() {}
 
   noSuchMethod(InvocationMirror mirror) {
-    Expect.equals("foo", mirror.memberName);
+    Expect.equals("foo", getName(mirror));
     // 'foo' was called with two parameters (not counting receiver).
     List args = mirror.positionalArguments;
     Expect.equals(2, args.length);