Revert of [heap] Switch to 500k pages

src/heap/spaces.h

 // Copyright 2011 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_SPACES_H_
 #define V8_HEAP_SPACES_H_
 
 #include <list>
 #include <memory>
 #include <unordered_set>
@@ skipping 678 matching lines @@
 
  private:
   void InitializeReservedMemory() { reservation_.Reset(); }
 
   friend class MemoryAllocator;
   friend class MemoryChunkValidator;
 };
 
 DEFINE_OPERATORS_FOR_FLAGS(MemoryChunk::Flags)
 
-static_assert(kMaxRegularHeapObjectSize <= MemoryChunk::kAllocatableMemory,
-              "kMaxRegularHeapObjectSize <= MemoryChunk::kAllocatableMemory");
+STATIC_ASSERT(kMaxRegularHeapObjectSize < MemoryChunk::kAllocatableMemory);
 
 // -----------------------------------------------------------------------------
 // A page is a memory chunk of a size 1MB. Large object pages may be larger.
 //
 // The only way to get a page pointer is by calling factory methods:
 //   Page* p = Page::FromAddress(addr); or
 //   Page* p = Page::FromTopOrLimit(top);
 class Page : public MemoryChunk {
  public:
   static const intptr_t kCopyAllFlags = ~0;
@@ skipping 2231 matching lines @@
   PageIterator old_iterator_;
   PageIterator code_iterator_;
   PageIterator map_iterator_;
   LargePageIterator lo_iterator_;
 };
 
 }  // namespace internal
 }  // namespace v8
 
 #endif  // V8_HEAP_SPACES_H_