Revert "[xdl] No longer restarts watchman when a module import fails"
Revert "[xdl] No longer restarts watchman when a module import fails"

:*( -- @skevy and I talked about this and our conclusion is that we
should use a smarter heuristic for figuring out whether something is
a haste problem or a typo. Typos are bad to reset automatically, but
being conservative here seems safest to me.

See https://github.com/expo/universe/issues/1123 for more info.

This reverts commit cc4e40d1964959286acce3a0684411a98592e96e.

fbshipit-source-id: 7ea114e

exponentjs/xdl,exponentjs/xdl,exponentjs/xdl