[turbofan] Make global variable loads and stores explicit.

src/compiler/js-type-feedback.h

Index: src/compiler/js-type-feedback.h
diff --git a/src/compiler/js-type-feedback.h b/src/compiler/js-type-feedback.h
index 80a0d56611a7690e23f9b9315bd26c75408f5e71..84060f80964c7be82f171d413781d85abbe39331 100644
--- a/src/compiler/js-type-feedback.h
+++ b/src/compiler/js-type-feedback.h
@@ -84,8 +84,8 @@ class JSTypeFeedbackSpecializer : public AdvancedReducer {
   Reduction Reduce(Node* node) override;
 
   // Visible for unit testing.
+  Reduction ReduceJSLoadGlobal(Node* node);
   Reduction ReduceJSLoadNamed(Node* node);
-  Reduction ReduceJSLoadNamedForGlobalVariable(Node* node);
   Reduction ReduceJSLoadProperty(Node* node);
   Reduction ReduceJSStoreNamed(Node* node);
   Reduction ReduceJSStoreProperty(Node* node);