store: reuse direncoded path in _hybridencode
For a netbeans clone on Windows 7 x64:
Before:
$ hg perffncacheencode
! wall 3.516000 comb 3.525623 user 3.525623 sys 0.000000 (best of 3)
After:
$ hg perffncacheencode
! wall 3.443000 comb 3.447622 user 3.447622 sys 0.000000 (best of 3)
Minimal hgk check
$ echo "[extensions]" >> $HGRCPATH
$ echo "hgk=" >> $HGRCPATH
$ hg init repo
$ cd repo
$ echo a > a
$ hg ci -Am adda
adding a
$ hg debug-cat-file commit 0
tree a0c8bcbbb45c
parent 000000000000
author test 0 0
committer test 0 0
revision 0
branch default
adda
$ cd ..