[ic] Simplify handling of primitive maps.

src/ic/ic.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ic/ic.h"
 
 #include <iostream>
 
 #include "src/accessors.h"
 #include "src/api-arguments-inl.h"
@@ skipping 844 matching lines @@
 
 namespace {
 
 template <bool fill_array>
 int InitPrototypeChecks(Isolate* isolate, Handle<Map> receiver_map,
                         Handle<JSObject> holder, Handle<FixedArray> array,
                         Handle<Name> name) {
   DCHECK(holder->HasFastProperties());
 
   // The following kinds of receiver maps require custom handler compilation.
-  if (receiver_map->IsPrimitiveMap() || receiver_map->IsJSGlobalObjectMap()) {
+  if (receiver_map->IsJSGlobalObjectMap()) {
     return -1;
   }
   // We don't encode the requirement to check access rights because we already
   // passed the access check for current native context and the access
   // can't be revoked.
 
   HandleScope scope(isolate);
   int checks_count = 0;
 
   // Switch to custom compiled handler if the prototype chain contains global
@@ skipping 2193 matching lines @@
     DCHECK_EQ(LookupIterator::INTERCEPTOR, it.state());
     it.Next();
     ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
                                        Object::GetProperty(&it));
   }
 
   return *result;
 }
 }  // namespace internal
 }  // namespace v8