Cleaning up usage of lookup results.

src/ia32/stub-cache-ia32.cc

Index: src/ia32/stub-cache-ia32.cc
diff --git a/src/ia32/stub-cache-ia32.cc b/src/ia32/stub-cache-ia32.cc
index 0e4ce20bd6e3ef24143b584f74cc5ae38dd217f2..6ab5bf37b77f585897417f31db270ea5e03f2f9f 100644
--- a/src/ia32/stub-cache-ia32.cc
+++ b/src/ia32/stub-cache-ia32.cc
@@ -1157,7 +1157,7 @@ void StubCompiler::GenerateLoadInterceptor(Handle<JSObject> object,
   // later.
   bool compile_followup_inline = false;
   if (lookup->IsFound() && lookup->IsCacheable()) {
-    if (lookup->type() == FIELD) {
+    if (lookup->IsField()) {
       compile_followup_inline = true;
     } else if (lookup->type() == CALLBACKS &&
                lookup->GetCallbackObject()->IsAccessorInfo()) {
@@ -1242,7 +1242,7 @@ void StubCompiler::GenerateLoadInterceptor(Handle<JSObject> object,
                                    miss);
     }
 
-    if (lookup->type() == FIELD) {
+    if (lookup->IsField()) {
       // We found FIELD property in prototype chain of interceptor's holder.
       // Retrieve a field from field's holder.
       GenerateFastPropertyLoad(masm(), eax, holder_reg,