Add an intrinsified early out path for Dart timeline calls

runtime/vm/method_recognizer.h

 // Copyright (c) 2014, 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.
 
 #ifndef VM_METHOD_RECOGNIZER_H_
 #define VM_METHOD_RECOGNIZER_H_
 
 #include "vm/allocation.h"
 
 namespace dart {
@@ skipping 289 matching lines @@
 
 #define GRAPH_INTRINSICS_LIST(V)                                               \
   GRAPH_CORE_INTRINSICS_LIST(V)                                                \
   GRAPH_TYPED_DATA_INTRINSICS_LIST(V)                                          \
   GRAPH_MATH_LIB_INTRINSIC_LIST(V)                                             \
 
 #define DEVELOPER_LIB_INTRINSIC_LIST(V)                                        \
   V(_UserTag, makeCurrent, UserTag_makeCurrent, 187721469)                     \
   V(::, _getDefaultTag, UserTag_defaultTag, 350077879)                         \
   V(::, _getCurrentTag, Profiler_getCurrentTag, 1215225901)                    \
+  V(::, _isDartStreamEnabled, Timeline_isDartStreamEnabled, 1021330202)        \
 
 #define ALL_INTRINSICS_NO_INTEGER_LIB_LIST(V)                                  \
   CORE_LIB_INTRINSIC_LIST(V)                                                   \
   DEVELOPER_LIB_INTRINSIC_LIST(V)                                              \
   MATH_LIB_INTRINSIC_LIST(V)                                                   \
   TYPED_DATA_LIB_INTRINSIC_LIST(V)                                             \
 
 #define ALL_INTRINSICS_LIST(V)                                                 \
   ALL_INTRINSICS_NO_INTEGER_LIB_LIST(V)                                        \
   CORE_INTEGER_LIB_INTRINSIC_LIST(V)
@@ skipping 216 matching lines @@
 // Class that recognizes factories and returns corresponding result cid.
 class FactoryRecognizer : public AllStatic {
  public:
   // Return kDynamicCid if factory is not recognized.
   static intptr_t ResultCid(const Function& factory);
 };
 
 }  // namespace dart
 
 #endif  // VM_METHOD_RECOGNIZER_H_