Test Matcher::get_parse_error()
Test Matcher::get_parse_error()

We already kinda do it in a test that tries to parse an invalid
expression, but I think it's nice to have a test to specify that the
function is actually an important part of the interface, not just
a by-product of some error-handling.

newsboat/newsboat,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,newsboat/newsboat,newsboat/newsboat,der-lyse/newsboat,der-lyse/newsboat,der-lyse/newsboat,der-lyse/newsboat,der-lyse/newsboat