Revert 21502 - "Move OS::MemCopy and OS::MemMove out of platform to utils"

src/allocation.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 "allocation.h"
 
 #include <stdlib.h>  // For free, malloc.
 #include "checks.h"
 #include "platform.h"
 #include "utils.h"
@@ skipping 48 matching lines @@
 void AllStatic::operator delete(void* p) {
   UNREACHABLE();
 }
 
 #endif
 
 
 char* StrDup(const char* str) {
   int length = StrLength(str);
   char* result = NewArray<char>(length + 1);
-  MemCopy(result, str, length);
+  OS::MemCopy(result, str, length);
   result[length] = '\0';
   return result;
 }
 
 
 char* StrNDup(const char* str, int n) {
   int length = StrLength(str);
   if (n < length) length = n;
   char* result = NewArray<char>(length + 1);
-  MemCopy(result, str, length);
+  OS::MemCopy(result, str, length);
   result[length] = '\0';
   return result;
 }
 
 
 void* AlignedAlloc(size_t size, size_t alignment) {
   ASSERT(IsPowerOf2(alignment) && alignment >= V8_ALIGNOF(void*));  // NOLINT
   void* ptr;
 #if V8_OS_WIN
   ptr = _aligned_malloc(size, alignment);
@@ skipping 14 matching lines @@
   _aligned_free(ptr);
 #elif V8_LIBC_BIONIC
   // Using free is not correct in general, but for V8_LIBC_BIONIC it is.
   free(ptr);
 #else
   free(ptr);
 #endif
 }
 
 } }  // namespace v8::internal