merge: remember rename copies and parents properly on commit
record copies in dirstate even if rename was remote
this lets us record it properly at commit
teach checkfilemerge about copies, including merge cases
pull old copy code out of commit
extend rename-merge1 test to show file index
abort: impossible time zone offset: 4444444
transaction abort!
rollback completed
abort: invalid date: '1\t15.1' see hg(1) manual page for details
transaction abort!
rollback completed
abort: invalid date: 'foo bar' see hg(1) manual page for details
transaction abort!
rollback completed
abort: invalid date: ' 1 4444' see hg(1) manual page for details
transaction abort!
rollback completed
abort: date exceeds 32 bits: 111111111111
transaction abort!
rollback completed
abort: No such file or directory: .../test/bar