Closes #311 - fix no_match_in_condition reports a warning even when the condition includes a valid match

[bormilan]

Description

My idea was to check only the "first layer of children" of the case type Node. And I added the type block too.

Closes #311;.

• [x] I have read and understood the contributing guidelines

[elbrujohalcon]

I'll let @paulo-ferraz-oliveira review, too... but from my perspective, this is 100% mergeable.