better error output
commit82a433791c3ed8f8ce8d89d8d4351c54d344836a
authorHugo Venturini <hgo@fb.com>
Fri, 19 May 2017 10:12:22 +0000 (19 03:12 -0700)
committerHhvm Bot <hhvm-bot@users.noreply.github.com>
Fri, 19 May 2017 10:31:37 +0000 (19 03:31 -0700)
treefc3121d201dd535933f5a23a5ba8cac09635d709
parentc7a9aa495fd49c45b4d3f02d7fe77e18a8b90fc2
better error output

Summary: we are missing info when the semdiff tool fails

Reviewed By: nbenton

Differential Revision: D5086807

fbshipit-source-id: f87ad3d9ab299bb74d950d544c600b76ebadd7b5
hphp/hack/src/hhbc/Hhas_parser_actions.ml
hphp/hack/src/hhbc/semdiff/semdiff.ml