Darcs.Patch.Depends
getUncovered
areUnrelatedRepos
findCommonAndUncommon
mergeThem
findCommonWithThem
countUsThem
removeFromPatchSet
slightlyOptimizePatchset
getPatchesBeyondTag
splitOnTag
newsetUnion
newsetIntersection
commuteToEnd
findUncommon
merge2FL