[Tracing] Use TracingCategoryObserver in runtime statistics

src/ic/handler-compiler.cc

Index: src/ic/handler-compiler.cc
diff --git a/src/ic/handler-compiler.cc b/src/ic/handler-compiler.cc
index 9b10045f80b51d8ca2e88bfceaf0c632b6fc1499..e34307ead81866f1095021b1cdf04b40f877777d 100644
--- a/src/ic/handler-compiler.cc
+++ b/src/ic/handler-compiler.cc
@@ -209,7 +209,7 @@ Handle<Code> NamedLoadHandlerCompiler::CompileLoadNonexistent(
 
 Handle<Code> NamedLoadHandlerCompiler::CompileLoadCallback(
     Handle<Name> name, Handle<AccessorInfo> callback, Handle<Code> slow_stub) {
-  if (FLAG_runtime_call_stats) {
+  if (V8_UNLIKELY(FLAG_runtime_stats)) {
     GenerateTailCall(masm(), slow_stub);
   }
   Register reg = Frontend(name);
@@ -221,7 +221,7 @@ Handle<Code> NamedLoadHandlerCompiler::CompileLoadCallback(
     Handle<Name> name, const CallOptimization& call_optimization,
     int accessor_index, Handle<Code> slow_stub) {
   DCHECK(call_optimization.is_simple_api_call());
-  if (FLAG_runtime_call_stats) {
+  if (V8_UNLIKELY(FLAG_runtime_stats)) {
     GenerateTailCall(masm(), slow_stub);
   }
   Register holder = Frontend(name);
@@ -575,7 +575,7 @@ Handle<Code> NamedStoreHandlerCompiler::CompileStoreCallback(
     Handle<JSObject> object, Handle<Name> name,
     const CallOptimization& call_optimization, int accessor_index,
     Handle<Code> slow_stub) {
-  if (FLAG_runtime_call_stats) {
+  if (V8_UNLIKELY(FLAG_runtime_stats)) {
     GenerateTailCall(masm(), slow_stub);
   }
   Register holder = Frontend(name);