tests/testlib/obsmarker-common.sh

rhg: Rename some revlog-related types and methods

Use "data chunck" and "data" for a revlog entry’s data before and after
resolving deltas (if any), repsectively.

The former `FilelogEntry` actually only contains data, rename it to
`FilelogRevisionData` accordingly. This leaves room to later have a
`FilelogEntry` type that wraps `RevlogEntry`.

Differential Revision: https://phab.mercurial-scm.org/D11959

mkcommit() {
   name="$1"
   shift
   echo "$name" > "$name"
   hg add "$name"
   hg ci -m "$name" "$@"
}

getid() {
   hg log --hidden --template '{node}\n' --rev "$1"
}

cat >> $HGRCPATH <<EOF
[alias]
debugobsolete=debugobsolete -d '0 0'
EOF