Merge #6595

6595: Don't wrap parens around expr in remove_dbg assist if its in conditions r=Veykril a=Veykril

If the expr in the `dbg!` macro consists of multiple elements it won't remove the parentheses if its in a `match` or condition-using construct, as these are followed by siblings causing the `is_leaf` check to fail.

Co-authored-by: Lukas Wirth <lukastw97@gmail.com>