Enhance ReCodeCruftLeftInMethodsRule: take #haltOrBreakpointForTesting into account

[MarcusDenker]

We have methods that send #halt, but they are not a problem as they are tagged with #haltOrBreakpointForTesting or #debuggerCompleteToSender

The rule ReCodeCruftLeftInMethodsRule should take that into account

[jecisc]

Recently, added on rules checking all nodes of a method a guard to be able to skip whole methods.

The original plan was to speed up the checking of those methods in some cases. But this can be use in this case!

The guard is done by overriding ReAbstractRule>>#shouldCheckMethod:. Maybe ReCodeCruftLeftInMethodsRule could override it to check the pragmas?