Implement JS_INTERCEPTOR_CONSTANT

sdk/lib/_internal/compiler/implementation/warnings.dart

 // Copyright (c) 2011, 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 dart2js;
 
 const DONT_KNOW_HOW_TO_FIX = "";
 
 /**
  * The messages in this file should meet the following guide lines:
@@ skipping 1434 matching lines @@
       "'#{constructorName}'.");
 
   static const MessageKind PATCH_NON_FUNCTION = const MessageKind(
       "Error: Cannot patch non-function with function patch "
       "'#{functionName}'.");
 
   //////////////////////////////////////////////////////////////////////////////
   // Patch errors end.
   //////////////////////////////////////////////////////////////////////////////
 
+  static const MessageKind WRONG_ARGUMENT_FOR_JS_INTERCEPTOR_CONSTANT =

[ahe, 2013/10/29 15:23:07]

I'd remove this message and use MessageKind.GENERIC.

If you decide to keep this message, move it to line 1303.

[sra1, 2013/10/29 18:00:47]

I decided to keep it since there are multiple references and the GENERIC form
formatted to twice as many lines.

+      const MessageKind(
+      "Error: Argument for 'JS_INTERCEPTOR_CONSTANT' must be a type constant.");
+
   toString() => template;
 
   Message message([Map arguments = const {}, bool terse = false]) {
     return new Message(this, arguments, terse);
   }
 
   CompilationError error([Map arguments = const {}, bool terse = false]) {
     return new CompilationError(this, arguments, terse);
   }
 
@@ skipping 69 matching lines @@
 
 class CompileTimeConstantError extends Diagnostic {
   CompileTimeConstantError(MessageKind kind, Map arguments, bool terse)
     : super(kind, arguments, terse);
 }
 
 class CompilationError extends Diagnostic {
   CompilationError(MessageKind kind, Map arguments, bool terse)
     : super(kind, arguments, terse);
 }