- Add DEBUG_ONLY and NOT_IN_PRODUCT macros.

runtime/vm/dart_api_impl.cc

Index: runtime/vm/dart_api_impl.cc
diff --git a/runtime/vm/dart_api_impl.cc b/runtime/vm/dart_api_impl.cc
index dad463e695087a4fa5418a5110b336fb9c00d24d..a12cc31684a5acd166f2b5a183ad9d912351c7e5 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -5717,9 +5717,9 @@ DART_EXPORT Dart_Handle Dart_ServiceSendDataEvent(const char* stream_id,
                                                   const char* event_kind,
                                                   const uint8_t* bytes,
                                                   intptr_t bytes_length) {
-#ifdef PRODUCT
+#if defined(PRODUCT)
   return Api::Success();
-#else
+#else  // defined(PRODUCT)
   DARTSCOPE(Thread::Current());
   Isolate* I = T->isolate();
   if (stream_id == NULL) {
@@ -5738,7 +5738,7 @@ DART_EXPORT Dart_Handle Dart_ServiceSendDataEvent(const char* stream_id,
   Service::SendEmbedderEvent(I, stream_id, event_kind,
                              bytes, bytes_length);
   return Api::Success();
-#endif  // PRODUCT
+#endif  // defined(PRODUCT)
 }