[heap] Reland Move large object space selection into AllocateRaw.

src/heap/heap.h

 // 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.
 
 #ifndef V8_HEAP_HEAP_H_
 #define V8_HEAP_HEAP_H_
 
 #include <cmath>
 #include <map>
 
@@ skipping 1626 matching lines @@
   static const int kAllocationSiteScratchpadSize = 256;
 
   Heap();
 
   static String* UpdateNewSpaceReferenceInExternalStringTableEntry(
       Heap* heap, Object** pointer);
 
   static void ScavengeStoreBufferCallback(Heap* heap, MemoryChunk* page,
                                           StoreBufferEvent event);
 
-  // Selects the proper allocation space depending on the given object
-  // size and pretenuring decision.
-  static AllocationSpace SelectSpace(int object_size, PretenureFlag pretenure) {
-    if (object_size > Page::kMaxRegularHeapObjectSize) return LO_SPACE;
+  // Selects the proper allocation space based on the pretenuring decision.
+  static AllocationSpace SelectSpace(PretenureFlag pretenure) {
     return (pretenure == TENURED) ? OLD_SPACE : NEW_SPACE;
   }
 
 #define ROOT_ACCESSOR(type, name, camel_name) \
   inline void set_##name(type* value);
   ROOT_LIST(ROOT_ACCESSOR)
 #undef ROOT_ACCESSOR
 
   StoreBuffer* store_buffer() { return &store_buffer_; }
 
@@ skipping 1054 matching lines @@
   DisallowHeapAllocation no_allocation;  // i.e. no gc allowed.
 
  private:
   DISALLOW_IMPLICIT_CONSTRUCTORS(PathTracer);
 };
 #endif  // DEBUG
 }
 }  // namespace v8::internal
 
 #endif  // V8_HEAP_HEAP_H_