revset: make sort() noop depending on ordering requirement (BC) See the previous patch for why.

revset: make reverse() noop depending on ordering requirement (BC) Because smartset.reverse() may modify the underlying subset, it should be called only if the set can define the ordering. In the following example, 'a' and 'c' is the same object, so 'b.reverse()' would reverse 'a' unexpectedly. # '0:2 & reverse(all())' <filteredset <spanset- 0:2>, # a <filteredset # b <spanset- 0:2>, # c <spanset+ 0:9>>>

revset: fix order of nested 'range' expression (BC) Enforce range order only if necessary as the comment says "carrying the sorting over would be more efficient."

revset: forward ordering requirement to argument of present() present() is special in that it returns the argument set with no modification, so the ordering requirement should be forwarded. We could make present() fix the order like orset(), but that would be silly because we know the extra filtering cost is unnecessary.

crecord: delete commented line

manifest: move dirlog up to manifestrevlog This removes dirlog and its associated cache from manifest and puts it in manifestrevlog. The notion of there being sub-logs is specific to the revlog implementation, and therefore belongs on the revlog class. This patch will enable future patches to move the serialization logic for manifests onto manifestrevlog, which will allow us to move manifest.add onto manifestlog in a way that it just calls out to manifestrevlog for the serialization.