Disallow use of "!"

[steevanbarboyon]

Hi ;)

As ! don't care about the type, it should be disallowed by phpstan/strict-rules no?

[ondrejmirtes]

Hi, I don't know what you mean, can you post a phpstan.org example with expected output?

[dktapps]

This sounds unnecessarily restrictive... requiring that the operand of ! be a boolean should be more than enough.