Put constants in 'C', not '$'.

dart/sdk/lib/_internal/compiler/implementation/js_backend/constant_emitter.dart

 // Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 part of js_backend;
 
 class ConstantEmitter  {
   ConstantReferenceEmitter _referenceEmitter;
   ConstantInitializerEmitter _initializerEmitter;
 
@@ skipping 104 matching lines @@
     // then it should be assigned to a name.  We don't have reference counts (or
     // profile information) here, so this is the wrong place.
     StringBuffer sb = new StringBuffer();
     writeJsonEscapedCharsOn(constant.value.slowToString(), sb);
     return new jsAst.LiteralString('"$sb"');
   }
 
   jsAst.Expression emitCanonicalVersion(Constant constant) {
     String name = namer.constantName(constant);
     return new jsAst.PropertyAccess.field(
-        new jsAst.VariableUse(namer.CURRENT_ISOLATE), name);
+        new jsAst.VariableUse(namer.globalObjectForConstant(constant)), name);
   }
 
   jsAst.Expression visitList(ListConstant constant) {
     return emitCanonicalVersion(constant);
   }
 
   jsAst.Expression visitMap(MapConstant constant) {
     return emitCanonicalVersion(constant);
   }
 
@@ skipping 188 matching lines @@
           .toList(growable: false)
           .map((DartType type) => rti.getTypeRepresentation(type, (_){}));
       jsAst.Expression argumentList =
           new jsAst.LiteralString('[${arguments.join(', ')}]');
       return new jsAst.Call(getHelperProperty(backend.getSetRuntimeTypeInfo()),
                             [value, argumentList]);
     }
     return value;
   }
 }