Support for global var shortcuts in script contexts.

src/contexts.h

Index: src/contexts.h
diff --git a/src/contexts.h b/src/contexts.h
index 78d4bc4255c5194d374fcf1c38cca902978b8a14..5c07f629d3853454558041a49e82ba299385b57c 100644
--- a/src/contexts.h
+++ b/src/contexts.h
@@ -225,6 +225,7 @@ class ScriptContextTable : public FixedArray {
     int context_index;
     int slot_index;
     VariableMode mode;
+    ContextSlotKindFlag slot_kind;
     InitializationFlag init_flag;
     MaybeAssignedFlag maybe_assigned_flag;
   };
@@ -556,6 +557,9 @@ class Context: public FixedArray {
         that->global_object()->native_context()->security_token();
   }
 
+  // Invalidates global variable bindings in given script context.
+  void InvalidateGlobalSlots();

[Toon Verwaest, 2015/07/01 09:28:55]

InitializeGlobalSlots

[Igor Sheludko, 2015/07/02 16:50:13]

Done.

+
   // A native context holds a list of all functions with optimized code.
   void AddOptimizedFunction(JSFunction* function);
   void RemoveOptimizedFunction(JSFunction* function);