Fix issue 7677: recognize const declarations inside methods.

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

Index: sdk/lib/_internal/compiler/implementation/compile_time_constants.dart
===================================================================
--- sdk/lib/_internal/compiler/implementation/compile_time_constants.dart	(revision 16601)
+++ sdk/lib/_internal/compiler/implementation/compile_time_constants.dart	(working copy)
@@ -462,6 +462,11 @@
         if (result != null) return result;
       } else if (Elements.isClass(element) || Elements.isTypedef(element)) {
         return makeTypeConstant(element);

[ahe, 2013/01/03 14:09:26]

To ease my mind, could you add this:

} else if (send.receiver != null) {
  // Fall through to error handling.

[ngeoffray, 2013/01/08 14:36:11]

This is not easing mine :) Where do you want to put that check? Why does it make
it easier to you?

[ahe, 2013/01/18 11:07:11]

Right here, before the new code.
Because I don't want this to become a constant expression by accident:

someConstant.field

[ngeoffray, 2013/01/18 11:15:30]

Done.

+      } else if (!Elements.isUnresolved(element)
+                 && element.isVariable()
+                 && element.modifiers.isConst()) {
+        Constant result = handler.compileConstant(element);
+        if (result != null) return result; 
       }
       return signalNotCompileTimeConstant(send);
     } else if (send.isCall) {