Support collapsing stack frames #50334
Description
Sometimes call stacks in the debugger contain a lot of frames from code that isn't the users (for example SDK code):
#0 Object._noSuchMethod (dart:core-patch/object_patch.dart:42)
#1 Object.noSuchMethod (dart:core-patch/object_patch.dart:46)
#2 HotRunner.validateReloadReport (package:flutter_tools/src/run_hot.dart:407)
#3 HotRunner._reloadSources.<anonymous closure> (package:flutter_tools/src/run_hot.dart:528)
#4 _rootRunUnary (dart:async/zone.dart:1128)
#5 _CustomZone.runUnary (dart:async/zone.dart:1012)
#6 _FutureListener.handleValue (dart:async/future_impl.dart:129)
#7 _Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:636)
#8 _Future._propagateToListeners (dart:async/future_impl.dart:665)
#9 _Future._completeWithValue (dart:async/future_impl.dart:478)
#10 Future.wait.<anonymous closure> (dart:async/future.dart:392)
#11 _rootRunUnary (dart:async/zone.dart:1128)
#12 _CustomZone.runUnary (dart:async/zone.dart:1012)
#13 _FutureListener.handleValue (dart:async/future_impl.dart:129)
#14 _Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:636)
#15 _Future._propagateToListeners (dart:async/future_impl.dart:665)
#16 _Future._complete (dart:async/future_impl.dart:468)
#17 _SyncCompleter.complete (dart:async/future_impl.dart:51)
#18 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:246)
#19 Isolate.reloadSources (package:flutter_tools/src/vmservice.dart:1047)
#20 _asyncThenWrapperHelper.<anonymous closure> (dart:async-patch/async_patch.dart:30)
#21 _rootRunUnary (dart:async/zone.dart:1128)
#22 _CustomZone.runUnary (dart:async/zone.dart:1012)
#23 _FutureListener.handleValue (dart:async/future_impl.dart:129)
#24 _Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:636)
#25 _Future._propagateToListeners (dart:async/future_impl.dart:665)
#26 _Future._complete (dart:async/future_impl.dart:468)
#27 _SyncCompleter.complete (dart:async/future_impl.dart:51)
#28 _completeOnAsyncReturn (dart:async-patch/async_patch.dart:246)
It would be good if we could somehow allow these to be collapsed so the user can focus on their own code, and only expand these if required.
Maybe it could even just be another presentationHint type for "unimportant" or "external" code, and VS Code can collapse consecutive frames with that hint, allowing them to be expanded by clicking?