[Tracing] Remove AppendLongInteger in TracedValue.

src/counters.cc

Index: src/counters.cc
diff --git a/src/counters.cc b/src/counters.cc
index 911cc3d2391f544198c833d736e1cf3943031051..df4ea0086031a9b5be1c4f06bdd020d52ae5e07e 100644
--- a/src/counters.cc
+++ b/src/counters.cc
@@ -280,8 +280,8 @@ void RuntimeCallCounter::Reset() {
 
 void RuntimeCallCounter::Dump(v8::tracing::TracedValue* value) {
   value->BeginArray(name_);
-  value->AppendLongInteger(count_);
-  value->AppendLongInteger(time_.InMicroseconds());
+  value->AppendString(std::to_string(count_));
+  value->AppendString(std::to_string(time_.InMicroseconds()));

[alph, 2016/12/06 00:54:42]

I think it's better to use double for both. 2^52 usec corresponds to 142 years
of uptime.

As a bonus you won't need to update the consumer part.

[lpy, 2016/12/06 01:45:49]

Done.

   value->EndArray();
 }