[corelib] dart:developer timeline flow events

runtime/vm/timeline_linux.cc

 // Copyright (c) 2017, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 #include "platform/globals.h"
 #if defined(HOST_OS_LINUX) && !defined(PRODUCT)
 
 #include <errno.h>
 #include <fcntl.h>
 #include <cstdlib>
@@ skipping 127 matching lines @@
                                                    TimelineEvent* event,
                                                    int64_t start,
                                                    int64_t start_cpu,
                                                    const char* category,
                                                    const char* name,
                                                    const char* args) {
   DartCommonTimelineEventHelpers::ReportCompleteEvent(
       thread, zone, event, start, start_cpu, category, name, args);
 }
 
+void DartTimelineEventHelpers::ReportFlowEvent(Thread* thread,
+                                               Zone* zone,
+                                               TimelineEvent* event,
+                                               int64_t start,
+                                               int64_t start_cpu,
+                                               const char* category,
+                                               const char* name,
+                                               int64_t type,
+                                               int64_t flow_id,
+                                               const char* args) {
+  DartCommonTimelineEventHelpers::ReportFlowEvent(thread, zone, event, start,
+                                                  start_cpu, category, name,
+                                                  type, flow_id, args);
+}
+
 void DartTimelineEventHelpers::ReportInstantEvent(Thread* thread,
                                                   Zone* zone,
                                                   TimelineEvent* event,
                                                   int64_t start,
                                                   const char* category,
                                                   const char* name,
                                                   const char* args) {
   DartCommonTimelineEventHelpers::ReportInstantEvent(thread, zone, event, start,
                                                      category, name, args);
 }
 
 }  // namespace dart
 
 #endif  // defined(HOST_OS_LINUX) && !defined(PRODUCT)