[Tracing] Use TracingCategoryObserver in runtime statistics

src/ic/ic.cc

 // Copyright 2012 the V8 project authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "src/ic/ic.h"
 
 #include <iostream>
 
 #include "src/accessors.h"
 #include "src/api-arguments-inl.h"
@@ skipping 2968 matching lines @@
 
 RUNTIME_FUNCTION(Runtime_StoreCallbackProperty) {
   Handle<JSObject> receiver = args.at<JSObject>(0);
   Handle<JSObject> holder = args.at<JSObject>(1);
   Handle<HeapObject> callback_or_cell = args.at<HeapObject>(2);
   Handle<Name> name = args.at<Name>(3);
   Handle<Object> value = args.at<Object>(4);
   CONVERT_LANGUAGE_MODE_ARG_CHECKED(language_mode, 5);
   HandleScope scope(isolate);
 
-  if (FLAG_runtime_call_stats) {
+  if (V8_UNLIKELY(FLAG_runtime_stats)) {
     RETURN_RESULT_OR_FAILURE(
         isolate, Runtime::SetObjectProperty(isolate, receiver, name, value,
                                             language_mode));
   }
 
   Handle<AccessorInfo> callback(
       callback_or_cell->IsWeakCell()
           ? AccessorInfo::cast(WeakCell::cast(*callback_or_cell)->value())
           : AccessorInfo::cast(*callback_or_cell));
 
@@ skipping 170 matching lines @@
     DCHECK_EQ(LookupIterator::INTERCEPTOR, it.state());
     it.Next();
     ASSIGN_RETURN_FAILURE_ON_EXCEPTION(isolate, result,
                                        Object::GetProperty(&it));
   }
 
   return *result;
 }
 }  // namespace internal
 }  // namespace v8