Make RegExp's constructor non-const.

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

Index: sdk/lib/_internal/compiler/implementation/lib/string_helper.dart
diff --git a/sdk/lib/_internal/compiler/implementation/lib/string_helper.dart b/sdk/lib/_internal/compiler/implementation/lib/string_helper.dart
index 3a35778c677a431b508c26c8ed97d583c9c8b487..cc99a1cbd632c548c4700f87065405b19e7f1c5a 100644
--- a/sdk/lib/_internal/compiler/implementation/lib/string_helper.dart
+++ b/sdk/lib/_internal/compiler/implementation/lib/string_helper.dart
@@ -92,7 +92,7 @@ stringReplaceAllUnchecked(receiver, from, to) {
       }
     } else {
       RegExp quoteRegExp =
-          const JSSyntaxRegExp(r'[-[\]{}()*+?.,\\^$|#\s]');
+          new JSSyntaxRegExp(r'[-[\]{}()*+?.,\\^$|#\s]');

[ahe, 2012/11/12 13:35:03]

Top-level final field?

[Anders Johnsen, 2012/11/12 13:45:38]

Done.

       var quoter = regExpMakeNative(quoteRegExp, global: true);
       var quoted = JS('String', r'#.replace(#, "\\$&")', from, quoter);
       RegExp replaceRegExp = new JSSyntaxRegExp(quoted);