Sane asynchronous debugging and stack traces

runtime/vm/bootstrap_natives.h

Index: runtime/vm/bootstrap_natives.h
diff --git a/runtime/vm/bootstrap_natives.h b/runtime/vm/bootstrap_natives.h
index 725af062cb621af56dd1d2f17882a595693d4251..89f161c0bd23afcdcb3c2aa2a2cbc6c88ea976e4 100644
--- a/runtime/vm/bootstrap_natives.h
+++ b/runtime/vm/bootstrap_natives.h
@@ -13,6 +13,7 @@ namespace dart {
 
 // List of bootstrap native entry points used in the core dart library.
 #define BOOTSTRAP_NATIVE_LIST(V)                                               \
+  V(AsyncStarMoveNext_debuggerStepCheck, 1)                                    \
   V(DartCore_fatal, 1)                                                         \
   V(Object_equals, 2)                                                          \
   V(Object_getHash, 1)                                                         \
@@ -161,7 +162,10 @@ namespace dart {
   V(DateTime_localTimeZoneAdjustmentInSeconds, 0)                              \
   V(AssertionError_throwNew, 3)                                                \
   V(Async_rethrow, 2)                                                          \
+  V(StackTrace_clearAsyncThreadStackTrace, 0)                                  \
+  V(StackTrace_setAsyncThreadStackTrace, 1)                                    \
   V(StackTrace_current, 0)                                                     \
+  V(StackTrace_forAsyncMethod, 1)                                              \
   V(TypeError_throwNew, 5)                                                     \
   V(FallThroughError_throwNew, 1)                                              \
   V(AbstractClassInstantiationError_throwNew, 2)                               \