Add mirrors tests

test/codegen/lib/mirrors/fake_function_with_call_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 "dart:mirrors";
+
+import "package:expect/expect.dart";
+
+membersOf(ClassMirror cm) {
+  var result = new Map();
+  cm.declarations.forEach((k,v) {
+    if(v is MethodMirror && !v.isConstructor) result[k] = v;
+    if(v is VariableMirror) result[k] = v;
+  });
+  return result;
+}
+
+class WannabeFunction {
+  int call(int a, int b) => a + b;
+  method(x) => x * x;
+}
+
+main() {
+  Expect.isTrue(new WannabeFunction() is Function);
+
+  ClosureMirror cm = reflect(new WannabeFunction());
+  Expect.equals(7, cm.invoke(#call, [3,4]).reflectee);
+  Expect.throws(() => cm.invoke(#call, [3]),
+                (e) => e is NoSuchMethodError,
+                "Wrong arity");
+  Expect.equals(49, cm.invoke(#method, [7]).reflectee);
+  Expect.throws(() => cm.invoke(#method, [3, 4]),
+                (e) => e is NoSuchMethodError,
+                "Wrong arity");
+  Expect.equals(7, cm.apply([3,4]).reflectee);
+  Expect.throws(() => cm.apply([3]),
+                (e) => e is NoSuchMethodError,
+                "Wrong arity");
+
+  MethodMirror mm = cm.function;
+  Expect.equals(#call, mm.simpleName);
+  Expect.equals(reflectClass(WannabeFunction), mm.owner);
+  Expect.isTrue(mm.isRegularMethod);
+  Expect.equals(#int, mm.returnType.simpleName);
+  Expect.equals(#int, mm.parameters[0].type.simpleName);
+  Expect.equals(#int, mm.parameters[1].type.simpleName);
+
+  ClassMirror km = cm.type;
+  Expect.equals(reflectClass(WannabeFunction), km);
+  Expect.equals(#WannabeFunction, km.simpleName);
+  Expect.equals(mm, km.declarations[#call]);
+  Expect.setEquals([#call, #method], membersOf(km).keys);
+}