Merge up to 8597 to experimental/gc from the bleeding edge.

src/lithium-allocator.h

Index: src/lithium-allocator.h
===================================================================
--- src/lithium-allocator.h	(revision 8618)
+++ src/lithium-allocator.h	(working copy)
@@ -162,12 +162,12 @@
 class TempIterator BASE_EMBEDDED {
  public:
   inline explicit TempIterator(LInstruction* instr);
-  inline bool HasNext();
-  inline LOperand* Next();
+  inline bool Done();
+  inline LOperand* Current();
   inline void Advance();
 
  private:
-  inline int AdvanceToNext(int start);
+  inline void SkipUninteresting();
   LInstruction* instr_;
   int limit_;
   int current_;
@@ -178,12 +178,12 @@
 class InputIterator BASE_EMBEDDED {
  public:
   inline explicit InputIterator(LInstruction* instr);
-  inline bool HasNext();
-  inline LOperand* Next();
+  inline bool Done();
+  inline LOperand* Current();
   inline void Advance();
 
  private:
-  inline int AdvanceToNext(int start);
+  inline void SkipUninteresting();
   LInstruction* instr_;
   int limit_;
   int current_;
@@ -193,8 +193,8 @@
 class UseIterator BASE_EMBEDDED {
  public:
   inline explicit UseIterator(LInstruction* instr);
-  inline bool HasNext();
-  inline LOperand* Next();
+  inline bool Done();
+  inline LOperand* Current();
   inline void Advance();
 
  private: