Add missing smi check in IC for nonexistent properties....

src/ia32/stub-cache-ia32.cc

Index: src/ia32/stub-cache-ia32.cc
===================================================================
--- src/ia32/stub-cache-ia32.cc	(revision 4445)
+++ src/ia32/stub-cache-ia32.cc	(working copy)
@@ -1976,6 +1976,10 @@
   // -----------------------------------
   Label miss;
 
+  // Check that the receiver isn't a smi.
+  __ test(eax, Immediate(kSmiTagMask));
+  __ j(zero, &miss, not_taken);
+
   // Check the maps of the full prototype chain. Also check that
   // global property cells up to (but not including) the last object
   // in the prototype chain are empty.