Bug report

When using readonly props in traits, some rules seem to be not working. In particular, the MissingReadOnlyPropertyAssign rule seems to be not creating errors I'd expect it to.

Code snippet that reproduces the problem

https://phpstan.org/r/ae4cf6c0-b690-4d0e-9b59-5d246ca8a85c

Expected output

Throw also errors for invalid assignments of the bar and baz properties.

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