[ic] Support data handlers in LoadGlobalIC.

src/globals.h

Index: src/globals.h
diff --git a/src/globals.h b/src/globals.h
index f689c667b6cd3621d1a0b81d71c34aa9707a8853..82c95d9c968814b62b6892081dcf5b044e39d797 100644
--- a/src/globals.h
+++ b/src/globals.h
@@ -314,26 +314,24 @@ inline std::ostream& operator<<(std::ostream& os, const LanguageMode& mode) {
   return os;
 }
 
-
 inline bool is_sloppy(LanguageMode language_mode) {
   return language_mode == SLOPPY;
 }
 
-
 inline bool is_strict(LanguageMode language_mode) {
   return language_mode != SLOPPY;
 }
 
-
 inline bool is_valid_language_mode(int language_mode) {
   return language_mode == SLOPPY || language_mode == STRICT;
 }
 
-
 inline LanguageMode construct_language_mode(bool strict_bit) {
   return static_cast<LanguageMode>(strict_bit);
 }
 
+enum TypeofMode : int { INSIDE_TYPEOF, NOT_INSIDE_TYPEOF };
+
 // This constant is used as an undefined value when passing source positions.
 const int kNoSourcePosition = -1;