Implement InstanceMirror.== in dart2js and InstanceMirror.hashCode in the VM and …

tests/lib/mirrors/equality_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.class_equality_test;
 
 import 'dart:mirrors';
 
 import 'package:expect/expect.dart';
 
 class A<T> {}
 class B extends A<int> {}
 
+class BadEqualityHash {
+  int count = 0;
+  bool operator ==(other) => true;
+  int get hashCode => count++;
+}
+
 checkEquality(List<Map> equivalenceClasses) {
   for (var equivalenceClass in equivalenceClasses) {
     equivalenceClass.forEach((name, member) {
       equivalenceClass.forEach((otherName, otherMember) {
         // Reflexivity, symmetry and transitivity.
         Expect.equals(member, 
                       otherMember,
                       "$name == $otherName");
         Expect.equals(member.hashCode,
                       otherMember.hashCode,
@@ skipping 14 matching lines @@
 
 void subroutine() {
 }
 
 main() {
   LibraryMirror thisLibrary =
       currentMirrorSystem()
       .findLibrary(const Symbol('test.class_equality_test'))
       .single;
 
-  Object o1 = new Object();
-  Object o2 = new Object();
+  var o1 = new Object();
+  var o2 = new Object();
+
+  var badEqualityHash1 = new BadEqualityHash();
+  var badEqualityHash2 = new BadEqualityHash();
 
   checkEquality([
     {'reflect(o1)' : reflect(o1),
      'reflect(o1), again' : reflect(o1)},
 
     {'reflect(o2)' : reflect(o2),
      'reflect(o2), again' : reflect(o2)},
 
+    {'reflect(badEqualityHash1)' : reflect(badEqualityHash1),
+     'reflect(badEqualityHash1), again' : reflect(badEqualityHash1)},
+
+    {'reflect(badEqualityHash2)' : reflect(badEqualityHash2),
+     'reflect(badEqualityHash2), again' : reflect(badEqualityHash2)},
+
+    {'reflect(true)' : reflect(true),
+     'reflect(true), again' : reflect(true)},
+
+    {'reflect(false)' : reflect(false),
+     'reflect(false), again' : reflect(false)},
+
+    {'reflect(null)' : reflect(null),
+     'reflect(null), again' : reflect(null)},
+
+    {'reflect(3.5+4.5)' : reflect(3.5+4.5),
+     'reflect(6.5+1.5)' : reflect(6.5+1.5)},
+
     {'reflect(3+4)' : reflect(3+4),
      'reflect(6+1)' : reflect(6+1)},
 
+    {'reflect("foo")' : reflect("foo"),
+     'reflect("foo"), again' : reflect("foo")},
+
     {'currentMirrorSystem().voidType' : currentMirrorSystem().voidType,
      'thisLibrary.functions[#subroutine].returnType' :
           thisLibrary.functions[const Symbol('subroutine')].returnType},
 
     {'currentMirrorSystem().dynamicType' : currentMirrorSystem().dynamicType,
      'thisLibrary.functions[#main].returnType' :
           thisLibrary.functions[const Symbol('main')].returnType},
 
     {'reflectClass(A)' : reflectClass(A),
      'thisLibrary.classes[#A]' : thisLibrary.classes[const Symbol('A')],
      'reflect(new A<int>()).type.originalDeclaration' :
           reflect(new A<int>()).type.originalDeclaration},
 
     {'reflectClass(B).superclass' : reflectClass(B).superclass,
      'reflect(new A<int>()).type' : reflect(new A<int>()).type},
 
     {'reflectClass(B)' : reflectClass(B),
      'thisLibrary.classes[#B]' : thisLibrary.classes[const Symbol('B')],
      'reflect(new B()).type' : reflect(new B()).type},
 
     {'thisLibrary' : thisLibrary,
      'reflectClass(A).owner' : reflectClass(A).owner,
      'reflectClass(B).owner' : reflectClass(B).owner,
      'reflect(new A()).type.owner' : reflect(new A()).type.owner,
      'reflect(new A()).type.owner' : reflect(new A()).type.owner},
   ]);
 }