Fix GCC 4.7 warnings:

src/ic.cc

Index: src/ic.cc
===================================================================
--- src/ic.cc	(revision 10282)
+++ src/ic.cc	(working copy)
@@ -622,7 +622,7 @@
         return isolate()->stub_cache()->ComputeCallNormal(
             argc, kind_, extra_state);
       }
-      break;
+      return Handle<Code>::null();

[Vyacheslav Egorov (Chromium), 2011/12/20 15:45:14]

ditto. what does compiler say? this can never be reached both branches of the if
statement end with returns.

     }
     case INTERCEPTOR:
       ASSERT(HasInterceptorGetter(*holder));