Fix arm debug build.

Review URL: http://codereview.chromium.org/2054010

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4647 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/arm/virtual-frame-arm.cc

@@ -661,7 +661,7 @@ void VirtualFrame::SetElementAt(Register reg, int this_far_down) {
     }
   } else {
     ASSERT(this_far_down >= 2);
-    ASSERT(virtual_elements <= 2);
+    ASSERT(kVirtualElements[top_of_stack_state_] <= 2);
     __ str(reg, ElementAt(this_far_down));
   }
 }