[Tracing] Re-add trace-events used by metrics accidentally removed.

src/parsing/parser.cc

Index: src/parsing/parser.cc
diff --git a/src/parsing/parser.cc b/src/parsing/parser.cc
index e978f0b6b4ed311c5c55229dbe4ce41f31b12b88..682e9d32b7c48a4d57cae63023dcaece16198a21 100644
--- a/src/parsing/parser.cc
+++ b/src/parsing/parser.cc
@@ -591,6 +591,7 @@ FunctionLiteral* Parser::ParseProgram(Isolate* isolate, ParseInfo* info) {
 
   HistogramTimerScope timer_scope(isolate->counters()->parse(), true);
   RuntimeCallTimerScope runtime_timer(isolate, &RuntimeCallStats::Parse);
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), "V8.Parse");
   TRACE_EVENT_RUNTIME_CALL_STATS_TRACING_SCOPED(
       isolate, &tracing::TraceEventStatsTable::Parse);
   Handle<String> source(String::cast(info->script()->source()));
@@ -763,6 +764,7 @@ FunctionLiteral* Parser::ParseLazy(Isolate* isolate, ParseInfo* info) {
   DCHECK(parsing_on_main_thread_);
   RuntimeCallTimerScope runtime_timer(isolate, &RuntimeCallStats::ParseLazy);
   HistogramTimerScope timer_scope(isolate->counters()->parse_lazy());
+  TRACE_EVENT0(TRACE_DISABLED_BY_DEFAULT("v8.compile"), "V8.ParseLazy");
   TRACE_EVENT_RUNTIME_CALL_STATS_TRACING_SCOPED(
       isolate, &tracing::TraceEventStatsTable::ParseLazy);
   Handle<String> source(String::cast(info->script()->source()));