Implement closurization of regular methods in ObjectMirror.getField in the VM.

tests/lib/mirrors/invoke_closurization_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.
+
+library test.invoke_closurization_test;
+
+import 'dart:mirrors';
+
+import 'package:expect/expect.dart';
+import 'invoke_test.dart';
+
+class C {
+  instanceMethod(x, y, z) => '$x+$y+$z';
+  static staticFunction(x, y, z) => '$x-$y-$z';
+}
+libraryFunction(x, y, z) => '$x:$y:$z';
+
+testSync() {
+  var result;
+
+  C c = new C();
+  InstanceMirror im = reflect(c);
+  result = im.getField(#instanceMethod);
+  Expect.isTrue(result.reflectee is Function, "Should be closure");
+  Expect.equals("A+B+C", result.reflectee('A', 'B', 'C'));
+
+  ClassMirror cm = reflectClass(C);
+  result = cm.getField(#staticFunction);
+  Expect.isTrue(result.reflectee is Function, "Should be closure");
+  Expect.equals("A-B-C", result.reflectee('A', 'B', 'C'));
+
+  LibraryMirror lm = cm.owner;
+  result = lm.getField(#libraryFunction);
+  Expect.isTrue(result.reflectee is Function, "Should be closure");
+  Expect.equals("A:B:C", result.reflectee('A', 'B', 'C'));
+}
+
+testAsync() {
+  var future;
+
+  C c = new C();
+  InstanceMirror im = reflect(c);
+  future = im.getFieldAsync(#instanceMethod);
+  expectValueThen(future, (result) {
+    Expect.isTrue(result.reflectee is Function, "Should be closure");
+    Expect.equals("A+B+C", result.reflectee('A', 'B', 'C'));
+  });
+
+  ClassMirror cm = reflectClass(C);
+  future = cm.getFieldAsync(#staticFunction);
+  expectValueThen(future, (result) {
+    Expect.isTrue(result.reflectee is Function, "Should be closure");
+    Expect.equals("A-B-C", result.reflectee('A', 'B', 'C'));
+  });
+
+  LibraryMirror lm = cm.owner;
+  future = lm.getFieldAsync(#libraryFunction);
+  expectValueThen(future, (result) {
+    Expect.isTrue(result.reflectee is Function, "Should be closure");
+    Expect.equals("A:B:C", result.reflectee('A', 'B', 'C'));
+  });
+}
+
+main() {
+  testSync();
+  testAsync();
+}