t / chainlint / arithmetic-expansion.expecton commit subtree: make --ignore-joins pay attention to adds (dd21d43)
   1(
   2        foo &&
   3        bar=$((42 + 1)) &&
   4        baz
   5>) &&
   6(
   7?!AMP?! bar=$((42 + 1))
   8        baz
   9>)