Convert PatchCache (and related methods) to use types rather than objects/maps.

src/x64/stub-cache-x64.cc

Index: src/x64/stub-cache-x64.cc
diff --git a/src/x64/stub-cache-x64.cc b/src/x64/stub-cache-x64.cc
index 431bf471071aefa7d51e9591fe16dffa506928ab..a1e8f211161e9c42cbfeffa0f9d9d3eb9818bcae 100644
--- a/src/x64/stub-cache-x64.cc
+++ b/src/x64/stub-cache-x64.cc
@@ -3068,7 +3068,7 @@ Handle<Code> LoadStubCompiler::CompileLoadGlobal(
 
 
 Handle<Code> BaseLoadStoreStubCompiler::CompilePolymorphicIC(
-    MapHandleList* receiver_maps,
+    TypeHandleList* types,
     CodeHandleList* handlers,
     Handle<Name> name,
     Code::StubType type,
@@ -3080,21 +3080,21 @@ Handle<Code> BaseLoadStoreStubCompiler::CompilePolymorphicIC(
   }
 
   Label number_case;
-  Label* smi_target = HasHeapNumberMap(receiver_maps) ? &number_case : &miss;
+  Label* smi_target = IncludesNumberType(types) ? &number_case : &miss;
   __ JumpIfSmi(receiver(), smi_target);
 
   Register map_reg = scratch1();
   __ movq(map_reg, FieldOperand(receiver(), HeapObject::kMapOffset));
-  int receiver_count = receiver_maps->length();
+  int receiver_count = types->length();
   int number_of_handled_maps = 0;
-  Handle<Map> heap_number_map = isolate()->factory()->heap_number_map();
   for (int current = 0; current < receiver_count; ++current) {
-    Handle<Map> map = receiver_maps->at(current);
+    Handle<Type> type = types->at(current);
+    Handle<Map> map = IC::TypeToMap(*type, isolate());
     if (!map->is_deprecated()) {
       number_of_handled_maps++;
       // Check map and tail call if there's a match
-      __ Cmp(map_reg, receiver_maps->at(current));
-      if (map.is_identical_to(heap_number_map)) {
+      __ Cmp(map_reg, map);
+      if (type->Is(Type::Number())) {
         ASSERT(!number_case.is_unused());
         __ bind(&number_case);
       }