Summary: Almost revert D2673 but leave the support for 'repeat'.
Test Plan: `arc help unit`.
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D2689
Summary:
We run all tests before deploy but some of them are expected to fail.
We need to skip them.
It can be useful also for someone else.
I don't propagate this to `arc diff` as that would be much more complicated - we would need a new state 'partially skipped'.
The 'path' argument needs to be a file, skipping whole dirs is not supported.
The 'path' argument is in fact engine specific and engines can support format like 'Class::testMethod' but I didn't bother to document it to not confuse people.
Test Plan:
`arc unit --skip test.php`
`arc unit --skip ../src/test.php`
Reviewers: epriestley
Reviewed By: epriestley
CC: aran, Korvin
Differential Revision: https://secure.phabricator.com/D2673
