Follow up to CL 764533002.

dart/pkg/compiler/lib/src/js_backend/namer.dart

Index: dart/pkg/compiler/lib/src/js_backend/namer.dart
diff --git a/dart/pkg/compiler/lib/src/js_backend/namer.dart b/dart/pkg/compiler/lib/src/js_backend/namer.dart
index 2675aa820db5e7d7022bf8f158f4affc4f8aea71..e1bc8e41dca9b863a3632fcd5328a93fb80a6e37 100644
--- a/dart/pkg/compiler/lib/src/js_backend/namer.dart
+++ b/dart/pkg/compiler/lib/src/js_backend/namer.dart
@@ -990,6 +990,13 @@ class Namer implements ClosureNamer {
     }
   }
 
+  String get incrementalHelperName => r'$dart_unsafe_eval';
+
+  jsAst.Expression get accessIncrementalHelper {
+    assert(compiler.hasIncrementalSupport);
+    return js('self.${incrementalHelperName}');
+  }
+
   void forgetElement(Element element) {
     String globalName = globals[element];
     invariant(element, globalName != null, message: 'No global name.');