Move assert.h/assert.cc from runtime/vm to runtime/platform

runtime/vm/memory_region.h

-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
+// Copyright (c) 2012, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #ifndef VM_MEMORY_REGION_H_
 #define VM_MEMORY_REGION_H_
 
-#include "vm/assert.h"
+#include "platform/assert.h"
+#include "vm/globals.h"
 
 namespace dart {
 
 // Memory regions are useful for accessing memory with bounds check in
 // debug mode. They can be safely passed by value and do not assume ownership
 // of the region.
 class MemoryRegion {
  public:
   MemoryRegion() : pointer_(NULL), size_(0) { }
   MemoryRegion(void* pointer, uword size) : pointer_(pointer), size_(size) { }
@@ skipping 57 matching lines @@
 
   void* pointer_;
   uword size_;
 
   DISALLOW_COPY_AND_ASSIGN(MemoryRegion);
 };
 
 }  // namespace dart
 
 #endif  // VM_MEMORY_REGION_H_