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

src/heap/heap.h

Index: src/heap/heap.h
diff --git a/src/heap/heap.h b/src/heap/heap.h
index 5d01e2a401999a24c2b5e08f44aa421b7e0d484a..89f1267002cedf4f589ae64f2063aca806cc1e86 100644
--- a/src/heap/heap.h
+++ b/src/heap/heap.h
@@ -1644,10 +1644,8 @@ class Heap {
   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;
   }