Hi, I would like to enable for Closures the two rules already present for normal functions, MissingFunctionParameterTypehintRule and MissingFunctionReturnTypehintRule.

I found that master branch has this commit 491540d which already enabled PHPStan\Rules\Missing\MissingClosureNativeReturnTypehintRule, so I guess only the parameter typehint is still missing.

May I propose a PR for a MissingClosureParameterTypehintRule?