Update V8 to r4730 as required by WebKit r60469
diff --git a/test/cctest/test-disasm-ia32.cc b/test/cctest/test-disasm-ia32.cc
index 02e64b4..f94cd45 100644
--- a/test/cctest/test-disasm-ia32.cc
+++ b/test/cctest/test-disasm-ia32.cc
@@ -237,6 +237,7 @@
   __ cld();
   __ rep_movs();
   __ rep_stos();
+  __ stos();
 
   __ sub(edx, Operand(ebx, ecx, times_4, 10000));
   __ sub(edx, Operand(ebx));