- Add support for binary operators

tests/compiler/dart2js/mock_compiler.dart

Index: tests/compiler/dart2js/mock_compiler.dart
diff --git a/tests/compiler/dart2js/mock_compiler.dart b/tests/compiler/dart2js/mock_compiler.dart
index 3d2c3922c97702a004608a1e6d21f7637cb8e591..743731da1cb2c1a4eb5e7f371c341efd18ad98d5 100644
--- a/tests/compiler/dart2js/mock_compiler.dart
+++ b/tests/compiler/dart2js/mock_compiler.dart
@@ -56,12 +56,12 @@ const String DEFAULT_INTERCEPTORSLIB = r'''
 
 const String DEFAULT_CORELIB = r'''
   print(var obj) {}
-  abstract class int extends num {}
-  abstract class double extends num {}
+  abstract class num {}
+  abstract class int extends num { }
+  abstract class double extends num { }
   class bool {}
   class String {}
   class Object {}
-  abstract class num {}
   class Function {}
   interface List default ListImplementation { List([length]);}
   class ListImplementation { factory List([length]) => null; }