381d54e4c Roll Dart SDK from 96fdaff98f48 to 5406f286f566 (5 revisions) (flutter/engine#27903) (#87711)

This reverts commit 52bf9dbb.

This gesture recognizer can be used to recognize the classic
"onclick" behavior, where each tap in a series fires an event
with an incrementing "count" of how many taps have occurred
in series. This can in turn be used to build widgets that respond
to both tap and double-tap, or for widgets like the YouTube TV
player, where each subsequent tap in a series of >2 taps adjusts
the playhead another 15 seconds.

Fixes https://github.com/flutter/flutter/issues/81657

* Add new hook for setupHotReload and after updating devFS is complete

* Handle the case where updateDevFS failed

This is to prevent trying to run the workflow in forks.

Bug: https://github.com/flutter/flutter/issues/87573

This fixes how the sample analyzer handles missing_identifier errors. It was looking at the wrong line, and missing an else clause, so it was silently allowing missing_identifier errors to pass.

In addition, this fixes the sample generation so that it uses the correct filename for the output files: it previously was looking for the first line that had a filename, which was meant to indicate a non-generated line. This change adds a new Line.generated constructor for generated lines, so that they can also have the correct filename associated with them.

- Update dwds and and the rest of the packages

Closes: https://github.com/flutter/flutter/issues/87100