Added type propagation from store to load locals, but only within a sequence node (not across bas...

vm/opt_code_generator_ia32.h

Index: vm/opt_code_generator_ia32.h
===================================================================
--- vm/opt_code_generator_ia32.h	(revision 2360)
+++ vm/opt_code_generator_ia32.h	(working copy)
@@ -14,6 +14,7 @@
 namespace dart {
 
 // Forward declarations.
+class ClassesForLocals;
 class DeoptimizationBlob;
 
 // Temporary hierarchy, until optimized code generator implemented.
@@ -43,6 +44,8 @@
   virtual void VisitReturnNode(ReturnNode* node);
   virtual void VisitSequenceNode(SequenceNode* node_sequence);
   virtual void VisitStoreInstanceFieldNode(StoreInstanceFieldNode* node);
+  virtual void VisitCatchClauseNode(CatchClauseNode* node);
+  virtual void VisitTryCatchNode(TryCatchNode* node);
 
   // Return true if intrinsification succeeded and no more code is needed.
   // Returns false if either no intrinsification occured or if intrinsified
@@ -155,6 +158,7 @@
   void TraceNotOpt(AstNode* node, const char* message);
 
   GrowableArray<DeoptimizationBlob*> deoptimization_blobs_;
+  ClassesForLocals* classes_for_locals_;
   const Class& smi_class_;
   const Class& double_class_;