Revert of [ic] [stubs] Don't use Code::flags in megamorphic stub cache hash computations.

src/type-info.cc

Index: src/type-info.cc
diff --git a/src/type-info.cc b/src/type-info.cc
index 8289d91125f5c3012b4552dc4b729da4b8770fa1..058ad4cf8f11480f07776c72e9489393e32b68ca 100644
--- a/src/type-info.cc
+++ b/src/type-info.cc
@@ -280,7 +280,8 @@
   receiver_types->Clear();
   if (!slot.IsInvalid()) {
     LoadICNexus nexus(feedback_vector_, slot);
-    CollectReceiverTypes(isolate()->load_stub_cache(), &nexus, name,
+    Code::Flags flags = Code::ComputeHandlerFlags(Code::LOAD_IC);
+    CollectReceiverTypes(isolate()->load_stub_cache(), &nexus, name, flags,
                          receiver_types);
   }
 }
@@ -306,7 +307,8 @@
                                                  Handle<Name> name,
                                                  SmallMapList* receiver_types) {
   receiver_types->Clear();
-  CollectReceiverTypes(isolate()->store_stub_cache(), slot, name,
+  Code::Flags flags = Code::ComputeHandlerFlags(Code::STORE_IC);
+  CollectReceiverTypes(isolate()->store_stub_cache(), slot, name, flags,
                        receiver_types);
 }
 
@@ -329,19 +331,22 @@
 void TypeFeedbackOracle::CollectReceiverTypes(StubCache* stub_cache,
                                               FeedbackVectorSlot slot,
                                               Handle<Name> name,
+                                              Code::Flags flags,
                                               SmallMapList* types) {
   StoreICNexus nexus(feedback_vector_, slot);
-  CollectReceiverTypes(stub_cache, &nexus, name, types);
+  CollectReceiverTypes(stub_cache, &nexus, name, flags, types);
 }
 
 void TypeFeedbackOracle::CollectReceiverTypes(StubCache* stub_cache,
                                               FeedbackNexus* nexus,
                                               Handle<Name> name,
+                                              Code::Flags flags,
                                               SmallMapList* types) {
   if (FLAG_collect_megamorphic_maps_from_stub_cache &&
       nexus->ic_state() == MEGAMORPHIC) {
     types->Reserve(4, zone());
-    stub_cache->CollectMatchingMaps(types, name, native_context_, zone());
+    stub_cache->CollectMatchingMaps(types, name, flags, native_context_,
+                                    zone());
   } else {
     CollectReceiverTypes(nexus, types);
   }