In UWP, GetFinalPathNameByHandle requires the app to declare appropriate
capabilities in the app's package manifest. Some of these capabilities are not
permitted in shipping apps on the app store, but may be fine for
development/debugging scenarios. If we can't resolve the full path due to
insufficient access, but have verified the handle is valid, return the original
path.

This gets hot reload requests working in the UWP embedder.

https://github.com/flutter/flutter/issues/79609

[fuchsia][shader warmup] Avoid recursively iterating over assets directory when loading skp's due to high cost of openat() on pkgfs (#25006)

* [fuchsia][shader warmup] Fixed SkpWarmupTest

This test regressed due to https://github.com/flutter/engine/pull/23488
and this regression was silent due to https://github.com/flutter/flutter/issues/78277

Credit to @gnoliyil for actually putting together the fix.

* [fuchsia][shader warmup] Avoid recursively iterating over assets directory when loading skp's due to high cost of openat() on pkgfs

Used the the `misspell` tool available at
https://github.com/client9/misspell, then applied hand-corrections. It's
possible we could adopt this as a presubmit, but there are still enough
false positives that it may not be worth the effort.

This change sets the fuchsia node attribute is_keyboard_key in the
accessibility bridge.

* Position accent popup window next to caret

https://github.com/flutter/flutter/issues/77545

* Fix typo