Load the global proxy from the context of the target function.

src/hydrogen.h

Index: src/hydrogen.h
diff --git a/src/hydrogen.h b/src/hydrogen.h
index b2fd14c3ab9f32d65a52d05fdbb3913bee628072..c94218548ceceeb6b8d2b7a457560238fc62912c 100644
--- a/src/hydrogen.h
+++ b/src/hydrogen.h
@@ -2455,6 +2455,9 @@ class HOptimizedGraphBuilder : public HGraphBuilder, public AstVisitor {
                                 HValue* receiver,
                                 Handle<Map> receiver_map);
 
+  void InstallGlobalReceiverInExpressionStack(int index,
+                                              Handle<JSFunction> function);
+
   // The translation state of the currently-being-translated function.
   FunctionState* function_state_;