Merge r3962 to trunk

src/jump-target.cc

Index: src/jump-target.cc
===================================================================
--- src/jump-target.cc	(revision 3962)
+++ src/jump-target.cc	(working copy)
@@ -100,9 +100,8 @@
         // change our decision about undetermined or invalid elements.
         if (element == NULL || !element->is_valid()) break;
 
-        element = element->Combine(&reaching_frames_[j]->elements_[i]);
-
         FrameElement* other = &reaching_frames_[j]->elements_[i];
+        element = element->Combine(other);
         if (element != NULL && !element->is_copy()) {
           ASSERT(other != NULL);
           // We overwrite the number information of one of the incoming frames.