Fix #676 Handle @SuppressWarnings on each method for CountInLoop

[kylekatarnls]

No description provided.

[kylekatarnls]

Hi guys, this fixes #676. It focuses on CountInLoopExpression but some other rules surely have the same problem. So I created a method we can reuse on other rules and we should take a look around to check which rules need it.

Using this method has a drawback: it check only methods code of a class. In the specific case of CountInLoopExpression this is not an issue because, as of now, it is not possible to use count() or any function call inside a class but outside methods (in property initialization for example).

But for other rules we may need to check this way each method (to see if there is @supressWarnings) then check properties initialization or any code inside the class that would not checked by applying the rule on each method node-by-node.

[tvbeek]

@kylekatarnls I did a first check, can you add test for this? After that I will check the rest of it.

Thanks for your PR.

[kylekatarnls]

Done.

[tvbeek]

Thanks