Reduce size by emitting $.foo instead of Isolate.prototype.foo.

lib/compiler/implementation/namer.dart

Index: lib/compiler/implementation/namer.dart
diff --git a/lib/compiler/implementation/namer.dart b/lib/compiler/implementation/namer.dart
index 9f0946f050511b6beaabcf336c71fcf439df1e39..7aa40cf6d77579aaca2bc0d81c478bd82ad1901a 100644
--- a/lib/compiler/implementation/namer.dart
+++ b/lib/compiler/implementation/namer.dart
@@ -196,10 +196,6 @@ class Namer {
     return "$ISOLATE.prototype.${getName(element)}";
   }
 
-  String isolateBailoutPropertyAccess(Element element) {
-    return '${isolatePropertyAccess(element)}\$bailout';
-  }
-
   String isolateBailoutAccess(Element element) {
     return '${isolateAccess(element)}\$bailout';
   }