- Add an OSThread structure which is the generic TLS structure for all C++

runtime/vm/thread_interrupter_macos.cc

Index: runtime/vm/thread_interrupter_macos.cc
diff --git a/runtime/vm/thread_interrupter_macos.cc b/runtime/vm/thread_interrupter_macos.cc
index c53ae133d7cfa3871057a4bb549649c83a6be1fc..a25c3c2048ead7c479288d21d063998b680706bd 100644
--- a/runtime/vm/thread_interrupter_macos.cc
+++ b/runtime/vm/thread_interrupter_macos.cc
@@ -43,7 +43,7 @@ class ThreadInterrupterMacOS : public AllStatic {
 };
 
 
-void ThreadInterrupter::InterruptThread(Thread* thread) {
+void ThreadInterrupter::InterruptThread(OSThread* thread) {
   if (FLAG_trace_thread_interrupter) {
     OS::Print("ThreadInterrupter interrupting %p\n", thread->id());
   }
@@ -64,4 +64,3 @@ void ThreadInterrupter::RemoveSignalHandler() {
 }  // namespace dart
 
 #endif  // defined(TARGET_OS_MACOS)
-