Reapply keyed load cache probing in generated code. I introduced a...

src/ic.h

Index: src/ic.h
===================================================================
--- src/ic.h	(revision 3447)
+++ src/ic.h	(working copy)
@@ -33,6 +33,11 @@
 namespace v8 {
 namespace internal {
 
+// Flag indicating whether an IC stub needs to check that a backing
+// store is in dictionary case.
+enum DictionaryCheck { CHECK_DICTIONARY, DICTIONARY_CHECK_DONE };
+
+
 // IC_UTIL_LIST defines all utility functions called from generated
 // inline caching code. The argument for the macro, ICU, is the function name.
 #define IC_UTIL_LIST(ICU)                             \