htoor3 9f5467e77c Add null-aware access to semantics instance (flutter/engine#40146)
* Add null-aware access to semantics instance

* Change callsites to use nullable instance

* Revert

* Add test

* whitespace

* Typo

* Fix comment

* Whitespace

* Comment fix
2023-03-14 10:57:09 -05:00
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