Change dart2js to follow the new spec on the equality operator.

tests/language/operator5_test.dart

Index: tests/language/operator5_test.dart
diff --git a/tests/language/operator5_test.dart b/tests/language/operator5_test.dart
index 87c86fbb8c04163e1256ed1fc1fa47e8f467950c..224deb691ccbb4c6bfedaddeb3712a484cb0f3fa 100644
--- a/tests/language/operator5_test.dart
+++ b/tests/language/operator5_test.dart
@@ -21,7 +21,7 @@ equals(a) {
 
 equalsNull(a) {
   try {
-    Expect.equals(1, a == null);
+    Expect.equals(false, a == null);
   } catch(TypeError e) {
     // In checked mode the test doesn't do anything.
   }
@@ -54,6 +54,7 @@ greaterEqual(a) {
 main() {
   var a = new A();
   equals(a);
+  equalsNull(a);

[floitsch, 2012/07/03 13:35:29]

hehe.

   less(a);
   lessEqual(a);
   greater(a);