- Fix for issue 25950 (add registration of a thread exit callback)

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 6e1d9f5dc8ff48400092056bee3ee5f86c594d0d..9d7cf01afe5c2dd54fdb885e7eae2fe73a7ee4a4 100644
--- a/runtime/vm/dart_api_impl.cc
+++ b/runtime/vm/dart_api_impl.cc
@@ -1139,6 +1139,7 @@ DART_EXPORT char* Dart_Initialize(
     Dart_IsolateInterruptCallback interrupt,
     Dart_IsolateUnhandledExceptionCallback unhandled,
     Dart_IsolateShutdownCallback shutdown,
+    Dart_ThreadExitCallback thread_exit,
     Dart_FileOpenCallback file_open,
     Dart_FileReadCallback file_read,
     Dart_FileWriteCallback file_write,
@@ -1160,6 +1161,7 @@ DART_EXPORT char* Dart_Initialize(
                                        instructions_snapshot,
                                        data_snapshot,
                                        create, shutdown,
+                                       thread_exit,
                                        file_open, file_read, file_write,
                                        file_close, entropy_source,
                                        get_service_assets);