t / chainlint / block.expecton commit refs.c: add refs_ref_exists() (b3cd33d)
   1(
   2        foo &&
   3        {
   4                echo a
   5                echo b
   6        } &&
   7        bar &&
   8        {
   9                echo c
  10?!AMP?! }
  11        baz
  12>)