Lint std::panic::catch_unwind

[llogiq]

This should only be used when one has no control over code that may panic, e.g. using integer division with unknown operands (although overflower should cover that, too). Otherwise, using a Result type should be the preferred way of dealing with errors.

[camsteffen]

This can be done with disallowed_method. A dedicated lint would be restriction so I don't think that's any better.