tests/test-extra-filelog-entry.t

revert: group related data in tuple in the dispatch table

The dispatch table used to be:

- action if in target manifest
- action if not in target manifest
- make backup if in target manifest
- make backup if not in target manifest

We turn this into two (action, make backup) tuples.

This helps both readability of the dispatch table and handling of each case.

This also prepares a refactoring where the different actions we performs, whether
"file is in target manifest" or not, are determined before reaching this loop.

Issue351: mq: qrefresh can create extra revlog entry

  $ echo "[extensions]" >> $HGRCPATH
  $ echo "mq=" >> $HGRCPATH

  $ hg init
  $ hg qinit

  $ echo b > b
  $ hg ci -A -m foo
  adding b

  $ echo cc > b
  $ hg qnew -f foo.diff
  $ echo b > b
  $ hg qrefresh

  $ hg debugindex b
     rev    offset  length  ..... linkrev nodeid       p1           p2 (re)
       0         0       3  .....       0 1e88685f5dde 000000000000 000000000000 (re)