Fixing the regression introduced in r4716.

The regression made 2 tests fail on ia32 with --always-full-compiler.

Review URL: http://codereview.chromium.org/2862028

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@4940 ce2b1a6d-e550-0410-aec6-3dcde31c8c00

src/ia32/full-codegen-ia32.cc

@@ -2175,7 +2175,7 @@ void FullCodeGenerator::EmitClassOf(ZoneList<Expression*>* args) {
   // LAST_JS_OBJECT_TYPE.
   ASSERT(LAST_TYPE == JS_FUNCTION_TYPE);
   ASSERT(JS_FUNCTION_TYPE == LAST_JS_OBJECT_TYPE + 1);
-  __ cmp(ebx, JS_FUNCTION_TYPE);
+  __ CmpInstanceType(eax, JS_FUNCTION_TYPE);
   __ j(equal, &function);
 
   // Check if the constructor in the map is a function.