[ic] Don't pass receiver and name to LoadGlobalIC.

src/crankshaft/hydrogen.cc

Index: src/crankshaft/hydrogen.cc
diff --git a/src/crankshaft/hydrogen.cc b/src/crankshaft/hydrogen.cc
index 315eabebbf00057d3a6c87d2fd477face01b081b..dcf8178e9133fd7865c6a85b1f6452fa09964944 100644
--- a/src/crankshaft/hydrogen.cc
+++ b/src/crankshaft/hydrogen.cc
@@ -5896,13 +5896,10 @@ void HOptimizedGraphBuilder::VisitVariableProxy(VariableProxy* expr) {
           return ast_context()->ReturnInstruction(instr, expr->id());
         }
       } else {
-        HValue* global_object = Add<HLoadNamedField>(
-            BuildGetNativeContext(), nullptr,
-            HObjectAccess::ForContextSlot(Context::EXTENSION_INDEX));
         Handle<TypeFeedbackVector> vector(current_feedback_vector(), isolate());
         HLoadGlobalGeneric* instr = New<HLoadGlobalGeneric>(
-            global_object, variable->name(), ast_context()->typeof_mode(),
-            vector, expr->VariableFeedbackSlot());
+            variable->name(), ast_context()->typeof_mode(), vector,
+            expr->VariableFeedbackSlot());
         return ast_context()->ReturnInstruction(instr, expr->id());
       }
     }