Move platform abstraction to base library

src/list.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_LIST_H_
 #define V8_LIST_H_
 
+#include "src/checks.h"
 #include "src/utils.h"
 
 namespace v8 {
 namespace internal {
 
 template<typename T> class Vector;
 
 // ----------------------------------------------------------------------------
 // The list is a template for very light-weight lists. We are not
 // using the STL because we want full control over space and speed of
@@ skipping 187 matching lines @@
 template <typename T, class P>
 int SortedListBSearch(const List<T>& list, P cmp);
 template <typename T>
 int SortedListBSearch(const List<T>& list, T elem);
 
 
 } }  // namespace v8::internal
 
 
 #endif  // V8_LIST_H_