add test for MatchesIterator that would have caught bug introduced in <<cset e8f9e8f910fd>>
add test for MatchesIterator that would have caught bug introduced in <<cset e8f9e8f910fd>>

wevial/bpython,aktorion/bpython,kdart/bpython,kdart/bpython,aktorion/bpython,wevial/bpython