Use dart.tearoff helper at tearoff sites

test/codegen/expect/names.js

Index: test/codegen/expect/names.js
diff --git a/test/codegen/expect/names.js b/test/codegen/expect/names.js
index 6c024bf560a1b309ee74abd45864d92df4d50d9b..84f5410e6795aaf3ae37697fcf368e84194934be 100644
--- a/test/codegen/expect/names.js
+++ b/test/codegen/expect/names.js
@@ -46,7 +46,7 @@ var core = dart.import(core);
     core.print(new Foo()[_foo$]());
     core.print(_foo());
     core.print(new Frame.caller([1, 2, 3]));
-    let eval$ = dart.bind(Frame, 'callee');
+    let eval$ = Frame.callee;
     core.print(eval$);
     core.print(dart.notNull(Frame2.caller) + dart.notNull(Frame2.arguments));
   }