Introduce subclass wrappers for STL containers that make them a lot easier

src/compiler/generic-algorithm.h

 // Copyright 2013 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_COMPILER_GENERIC_ALGORITHM_H_
 #define V8_COMPILER_GENERIC_ALGORITHM_H_
 
-#include <deque>
 #include <stack>
 
 #include "src/compiler/generic-graph.h"
 #include "src/compiler/generic-node.h"
 #include "src/zone-containers.h"
 
 namespace v8 {
 namespace internal {
 namespace compiler {
 
@@ skipping 19 matching lines @@
   //   void PostEdge(Traits::Node* from, int index, Traits::Node* to);
   // }
   template <class Visitor, class Traits, class RootIterator>
   static void Visit(GenericGraphBase* graph, Zone* zone,
                     RootIterator root_begin, RootIterator root_end,
                     Visitor* visitor) {
     typedef typename Traits::Node Node;
     typedef typename Traits::Iterator Iterator;
     typedef std::pair<Iterator, Iterator> NodeState;
     typedef zone_allocator<NodeState> ZoneNodeStateAllocator;
-    typedef std::deque<NodeState, ZoneNodeStateAllocator> NodeStateDeque;
-    typedef std::stack<NodeState, NodeStateDeque> NodeStateStack;
-    NodeStateStack stack((NodeStateDeque(ZoneNodeStateAllocator(zone))));
-    BoolVector visited(Traits::max_id(graph), false, ZoneBoolAllocator(zone));
+    typedef std::stack<NodeState, ZoneDeque<NodeState>> NodeStateStack;
+    NodeStateStack stack((ZoneDeque<NodeState>(zone)));
+    BoolVector visited(Traits::max_id(graph), false, zone);
     Node* current = *root_begin;
     while (true) {
       DCHECK(current != NULL);
       const int id = current->id();
       DCHECK(id >= 0);
       DCHECK(id < Traits::max_id(graph));  // Must be a valid id.
       bool visit = !GetVisited(&visited, id);
       if (visit) {
         Control control = visitor->Pre(current);
         visit = !IsSkip(control);
@@ skipping 64 matching lines @@
   static bool GetVisited(BoolVector* visited, int id) {
     if (id >= static_cast<int>(visited->size())) return false;
     return visited->at(id);
   }
 };
 }
 }
 }  // namespace v8::internal::compiler
 
 #endif  // V8_COMPILER_GENERIC_ALGORITHM_H_