[turbofan] Remove remaining uses of Class type from the compiler.

src/compiler/js-global-object-specialization.cc

Index: src/compiler/js-global-object-specialization.cc
diff --git a/src/compiler/js-global-object-specialization.cc b/src/compiler/js-global-object-specialization.cc
index 25262ff850a8471cd2cc787d1f774429ed8885ce..7ef07c1bb3dc2af56cf7408dbdf7605f2c3408d3 100644
--- a/src/compiler/js-global-object-specialization.cc
+++ b/src/compiler/js-global-object-specialization.cc
@@ -112,10 +112,11 @@ Reduction JSGlobalObjectSpecialization::ReduceJSLoadGlobal(Node* node) {
     } else if (property_cell_value->IsNumber()) {
       property_cell_value_type = type_cache_.kHeapNumber;
     } else {
+      // TODO(turbofan): Track the property_cell_value_map on the FieldAccess
+      // below and use it in LoadElimination to eliminate map checks.
       Handle<Map> property_cell_value_map(
           Handle<HeapObject>::cast(property_cell_value)->map(), isolate());
-      property_cell_value_type =
-          Type::Class(property_cell_value_map, graph()->zone());
+      property_cell_value_type = Type::For(property_cell_value_map);
     }
   }
   Node* value = effect = graph()->NewNode(