Sane asynchronous debugging and stack traces

runtime/vm/symbols.h

Index: runtime/vm/symbols.h
diff --git a/runtime/vm/symbols.h b/runtime/vm/symbols.h
index 3d4473b53e1984a1c13f67d87de10e4b76fcb9db..8ae9f04c1afaf524bc40865d2b05a49887e58430 100644
--- a/runtime/vm/symbols.h
+++ b/runtime/vm/symbols.h
@@ -46,8 +46,13 @@ class ObjectPointerVisitor;
   V(IteratorParameter, ":iterator")                                            \
   V(_AsyncStarStreamController, "_AsyncStarStreamController")                  \
   V(_AsyncStarStreamControllerConstructor, "_AsyncStarStreamController.")      \
+  V(_AsyncStarListenHelper, "_asyncStarListenHelper")                          \
+  V(_AsyncStarMoveNextHelper, "_asyncStarMoveNextHelper")                      \
   V(Controller, ":controller")                                                 \
+  V(ControllerStream, ":controller_stream")                                    \
+  V(Controller2, "controller")                                                 \
   V(Stream, "stream")                                                          \
+  V(_StreamImpl, "_StreamImpl")                                                \
   V(isPaused, "isPaused")                                                      \
   V(AddError, "addError")                                                      \
   V(AddStream, "addStream")                                                    \
@@ -100,6 +105,7 @@ class ObjectPointerVisitor;
   V(SavedStackTraceVar, ":saved_stack_trace_var")                              \
   V(ListLiteralElement, "list literal element")                                \
   V(ForInIter, ":for-in-iter")                                                 \
+  V(ColonStream, ":stream")                                                    \
   V(LoadLibrary, "loadLibrary")                                                \
   V(_LibraryPrefix, "_LibraryPrefix")                                          \
   V(On, "on")                                                                  \
@@ -121,7 +127,11 @@ class ObjectPointerVisitor;
   V(AsyncCatchHelper, "_asyncCatchHelper")                                     \
   V(AsyncThenWrapperHelper, "_asyncThenWrapperHelper")                         \
   V(AsyncErrorWrapperHelper, "_asyncErrorWrapperHelper")                       \
+  V(AsyncStackTraceHelper, "_asyncStackTraceHelper")                           \
+  V(ClearAsyncThreadStackTrace, "_clearAsyncThreadStackTrace")                 \
+  V(SetAsyncThreadStackTrace, "_setAsyncThreadStackTrace")                     \
   V(AsyncAwaitHelper, "_awaitHelper")                                          \
+  V(AsyncStackTraceVar, ":async_stack_trace")                                  \
   V(Await, "await")                                                            \
   V(AwaitTempVarPrefix, ":await_temp_var_")                                    \
   V(AwaitContextVar, ":await_ctx_var")                                         \
@@ -131,12 +141,15 @@ class ObjectPointerVisitor;
   V(FutureMicrotask, "Future.microtask")                                       \
   V(FutureValue, "Future.value")                                               \
   V(FutureThen, "then")                                                        \
+  V(_Awaiter, "_awaiter")                                                      \
   V(FutureCatchError, "catchError")                                            \
   V(Completer, "Completer")                                                    \
   V(CompleterComplete, "complete")                                             \
+  V(CompleterCompleteOnAsyncReturn, "_completeOnAsyncReturn")                  \
   V(CompleterCompleteError, "completeError")                                   \
   V(CompleterSyncConstructor, "Completer.sync")                                \
   V(CompleterFuture, "future")                                                 \
+  V(SyncCompleter, "_SyncCompleter")                                           \
   V(StreamIterator, "StreamIterator")                                          \
   V(StreamIteratorConstructor, "StreamIterator.")                              \
   V(Native, "native")                                                          \