Add mirrors tests

test/codegen/lib/mirrors/delegate_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_named_test;
+
+import 'dart:mirrors';
+
+import 'package:expect/expect.dart';
+
+class C {
+  method(a, b, c) => "$a-$b-$c";
+  methodWithNamed(a, {b:'B', c}) => "$a-$b-$c";
+  methodWithOpt(a, [b, c='C']) => "$a-$b-$c";
+  get getter => 'g';
+  set setter(x) {
+    field = x*2;
+    return 'unobservable value';
+  }
+  var field;
+}
+
+class Proxy {
+  var targetMirror;
+  Proxy(target) : this.targetMirror = reflect(target);
+  noSuchMethod(invocation) => targetMirror.delegate(invocation);
+}
+
+main() {
+  var c = new C();
+  var proxy = new Proxy(c);
+  var result;
+
+  Expect.equals('X-Y-Z', proxy.method('X', 'Y', 'Z'));
+
+  Expect.equals('X-B-null', proxy.methodWithNamed('X'));
+  Expect.equals('X-Y-null', proxy.methodWithNamed('X', b: 'Y'));
+  Expect.equals('X-Y-Z', proxy.methodWithNamed('X', b: 'Y', c: 'Z'));
+
+  Expect.equals('X-null-C', proxy.methodWithOpt('X'));
+  Expect.equals('X-Y-C', proxy.methodWithOpt('X', 'Y'));
+  Expect.equals('X-Y-Z', proxy.methodWithOpt('X', 'Y', 'Z'));
+
+  Expect.equals('g', proxy.getter);
+
+  Expect.equals(5, proxy.setter = 5);
+  Expect.equals(10, proxy.field);
+
+  Expect.equals(5, proxy.field = 5);
+  Expect.equals(5, proxy.field);
+}