Bug report

MethodCallThrowTypeExtension started to complain about MutatingScope not being covered by backward compatibility promise.

I would like to know how to modify the code to avoid this warning.

Code snippet that reproduces the problem

https://phpstan.org/r/5fd1150d-a3e3-478d-af2b-a7b82a4d9193

Expected output

No error reported.

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