Transform HGlobalValueNumberer::AnalyzeBlock from recursive into an iteraive...

Transform HGlobalValueNumberer::AnalyzeBlock from recursive into an iteraive loop keeping the traversal state in the zone instead of on the stack.
Fixed issue 129536.

BUG=129536
TEST=

Review URL: https://chromiumcodereview.appspot.com/10520004

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@11712 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/hydrogen.h

@@ -1242,6 +1242,7 @@ class HSideEffectMap BASE_EMBEDDED {
  public:
   HSideEffectMap();
   explicit HSideEffectMap(HSideEffectMap* other);
+  HSideEffectMap& operator= (const HSideEffectMap& other);
 
   void Kill(GVNFlagSet flags);