First implementation of allocation elimination in Hydrogen.

src/ia32/lithium-ia32.h

Index: src/ia32/lithium-ia32.h
diff --git a/src/ia32/lithium-ia32.h b/src/ia32/lithium-ia32.h
index 6a2aa006540f4e295a897932aac3591a6bd264cc..416c9f22f84ba1fea30baa9c10a4f63aa733006a 100644
--- a/src/ia32/lithium-ia32.h
+++ b/src/ia32/lithium-ia32.h
@@ -2923,7 +2923,8 @@ class LChunkBuilder BASE_EMBEDDED {
       CanDeoptimize can_deoptimize = CANNOT_DEOPTIMIZE_EAGERLY);
 
   LEnvironment* CreateEnvironment(HEnvironment* hydrogen_env,
-                                  int* argument_index_accumulator);
+                                  int* argument_index_accumulator,
+                                  ZoneList<HValue*>* objects_to_materialize);
 
   void VisitInstruction(HInstruction* current);