localrepo.commit: check all files for resolve state (issue4972) Previously we were only checking modified files for their resolve state. But a file might be unresolved yet not in the modified state. Handle all such cases properly.

from mercurial import util

def makedate():
    return 0, 0
def getuser():
    return 'bob'

# mock the date and user apis so the output is always the same
def uisetup(ui):
    util.makedate = makedate
    util.getuser = getuser