Add a trace-event for each runtime-stats timer

src/counters.h

Index: src/counters.h
diff --git a/src/counters.h b/src/counters.h
index d8ec066ce7d99de000de377241c7cd12c85caebd..01792e27f887e7c279df8e782d10184353cbfa23 100644
--- a/src/counters.h
+++ b/src/counters.h
@@ -13,6 +13,7 @@
 #include "src/globals.h"
 #include "src/objects.h"
 #include "src/runtime/runtime.h"
+#include "src/tracing/trace-event.h"
 
 namespace v8 {
 namespace internal {
@@ -783,6 +784,7 @@ class RuntimeCallStats {
 
 #define TRACE_RUNTIME_CALL_STATS(isolate, counter_name) \
   do {                                                  \
+    TRACE_RUNTIME_CALL(#counter_name);                  \
     if (FLAG_runtime_call_stats) {                      \
       RuntimeCallStats::CorrectCurrentCounterId(        \
           isolate, &RuntimeCallStats::counter_name);    \