Revert r19409: "Allow ICs to be generated for own global proxy."

src/code-stubs-hydrogen.cc

Index: src/code-stubs-hydrogen.cc
diff --git a/src/code-stubs-hydrogen.cc b/src/code-stubs-hydrogen.cc
index b7247eb6bf0bf4e78d0c90f3dc81c4365e819478..e1d11fb2147ec882e1466155f7b979f59edc42dd 100644
--- a/src/code-stubs-hydrogen.cc
+++ b/src/code-stubs-hydrogen.cc
@@ -1051,16 +1051,13 @@ HValue* CodeStubGraphBuilder<StoreGlobalStub>::BuildCodeInitializedStub() {
   Handle<PropertyCell> placeholder_cell =
       isolate()->factory()->NewPropertyCell(placeholer_value);
 
+  HParameter* receiver = GetParameter(0);
   HParameter* value = GetParameter(2);
 
-  if (stub->check_global()) {
-    // Check that the map of the global has not changed: use a placeholder map
-    // that will be replaced later with the global object's map.
-    Handle<Map> placeholder_map = isolate()->factory()->meta_map();
-    HValue* global = Add<HConstant>(
-        StoreGlobalStub::global_placeholder(isolate()));
-    Add<HCheckMaps>(global, placeholder_map, top_info());
-  }
+  // Check that the map of the global has not changed: use a placeholder map
+  // that will be replaced later with the global object's map.
+  Handle<Map> placeholder_map = isolate()->factory()->meta_map();
+  Add<HCheckMaps>(receiver, placeholder_map, top_info());
 
   HValue* cell = Add<HConstant>(placeholder_cell);
   HObjectAccess access(HObjectAccess::ForCellPayload(isolate()));