tests: skip test-lfconvert.t if not support symblic link

Windows not support symbolic link. but test-lfconvert.t
execute 'ln -s' command.

@@ -51,8 +51,6 @@
   skipping incorrectly formatted tag IncorrectlyFormattedTag!
   skipping incorrectly formatted id invalidhash
   no mapping for id 0123456789abcdef
-  abort: renamed/copied largefile large3 becomes symlink
-  [255]
   $ cd bigfile-repo
   $ hg strip --no-backup 2
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved

ERROR: test-lfconvert.t output changed

tests/test-lfconvert.t

@@ -1,260 +1,262 b''
+  $ "$TESTDIR/hghave" symlink || exit 80
+
   $ cat >> $HGRCPATH <<EOF
   > [extensions]
   > largefiles =
   > share =
   > graphlog =
   > mq =
   > [largefiles]
   > minsize = 0.5
   > patterns = **.other
   >     **.dat
   > EOF
 
 "lfconvert" works
   $ hg init bigfile-repo
   $ cd bigfile-repo
   $ cat >> .hg/hgrc <<EOF
   > [extensions]
   > largefiles = !
   > EOF
   $ mkdir sub
   $ dd if=/dev/zero bs=1k count=256 > large 2> /dev/null
   $ dd if=/dev/zero bs=1k count=256 > large2 2> /dev/null
   $ echo normal > normal1
   $ echo alsonormal > sub/normal2
   $ dd if=/dev/zero bs=1k count=10 > sub/maybelarge.dat 2> /dev/null
   $ hg addremove
   adding large
   adding large2
   adding normal1
   adding sub/maybelarge.dat
   adding sub/normal2
   $ hg commit -m"add large, normal1" large normal1
   $ hg commit -m"add sub/*" sub
 Test tag parsing
   $ cat >> .hgtags <<EOF
   > IncorrectlyFormattedTag!
   > invalidhash sometag
   > 0123456789abcdef anothertag
   > EOF
   $ hg add .hgtags
   $ hg commit -m"add large2" large2 .hgtags
   $ hg rename large2 large3
 Test link+rename largefile codepath
   $ ln -sf large large3
   $ hg commit -m"make large2 a symlink" large2 large3
   $ [ -d .hg/largefiles ] && echo fail || echo pass
   pass
   $ cd ..
   $ hg lfconvert --size 0.2 bigfile-repo largefiles-repo
   initializing destination largefiles-repo
   skipping incorrectly formatted tag IncorrectlyFormattedTag!
   skipping incorrectly formatted id invalidhash
   no mapping for id 0123456789abcdef
   abort: renamed/copied largefile large3 becomes symlink
   [255]
   $ cd bigfile-repo
   $ hg strip --no-backup 2
   0 files updated, 0 files merged, 2 files removed, 0 files unresolved
   $ cd ..
   $ rm -rf largefiles-repo
   $ hg lfconvert --size 0.2 bigfile-repo largefiles-repo
   initializing destination largefiles-repo
 
 "lfconvert" converts content correctly
   $ cd largefiles-repo
   $ hg up
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   getting changed largefiles
   2 largefiles updated, 0 removed
   $ hg locate
   .hglf/large
   .hglf/sub/maybelarge.dat
   normal1
   sub/normal2
   $ cat normal1
   normal
   $ cat sub/normal2
   alsonormal
   $ "$TESTDIR/md5sum.py" large sub/maybelarge.dat
   ec87a838931d4d5d2e94a04644788a55  large
   1276481102f218c981e0324180bafd9f  sub/maybelarge.dat
 
 "lfconvert" adds 'largefiles' to .hg/requires.
   $ cat .hg/requires
   largefiles
   revlogv1
   fncache
   store
   dotencode
 
 "lfconvert" includes a newline at the end of the standin files.
   $ cat .hglf/large .hglf/sub/maybelarge.dat
   2e000fa7e85759c7f4c254d4d9c33ef481e459a7
   34e163be8e43c5631d8b92e9c43ab0bf0fa62b9c
   $ cd ..
 
 add some changesets to rename/remove/merge
   $ cd bigfile-repo
   $ hg mv -q sub stuff
   $ hg commit -m"rename sub/ to stuff/"
   $ hg update -q 1
   $ echo blah >> normal3
   $ echo blah >> sub/normal2
   $ echo blah >> sub/maybelarge.dat
   $ "$TESTDIR/md5sum.py" sub/maybelarge.dat
   1dd0b99ff80e19cff409702a1d3f5e15  sub/maybelarge.dat
   $ hg commit -A -m"add normal3, modify sub/*"
   adding normal3
   created new head
   $ hg rm large normal3
   $ hg commit -q -m"remove large, normal3"
   $ hg merge
   merging sub/maybelarge.dat and stuff/maybelarge.dat to stuff/maybelarge.dat
   warning: $TESTTMP/bigfile-repo/stuff/maybelarge.dat looks like a binary file. (glob)
   merging stuff/maybelarge.dat incomplete! (edit conflicts, then use 'hg resolve --mark')
   merging sub/normal2 and stuff/normal2 to stuff/normal2
   0 files updated, 1 files merged, 0 files removed, 1 files unresolved
   use 'hg resolve' to retry unresolved file merges or 'hg update -C .' to abandon
   [1]
   $ hg cat -r . sub/maybelarge.dat > stuff/maybelarge.dat
   $ hg resolve -m stuff/maybelarge.dat
   $ hg commit -m"merge"
   $ hg glog --template "{rev}:{node|short}  {desc|firstline}\n"
   @    5:4884f215abda  merge
   |\
   | o  4:7285f817b77e  remove large, normal3
   | |
   | o  3:67e3892e3534  add normal3, modify sub/*
   | |
   o |  2:c96c8beb5d56  rename sub/ to stuff/
   |/
   o  1:020c65d24e11  add sub/*
   |
   o  0:117b8328f97a  add large, normal1
   
   $ cd ..
 
 lfconvert with rename, merge, and remove
   $ rm -rf largefiles-repo
   $ hg lfconvert --size 0.2 bigfile-repo largefiles-repo
   initializing destination largefiles-repo
   $ cd largefiles-repo
   $ hg glog --template "{rev}:{node|short}  {desc|firstline}\n"
   o    5:8e05f5f2b77e  merge
   |\
   | o  4:a5a02de7a8e4  remove large, normal3
   | |
   | o  3:55759520c76f  add normal3, modify sub/*
   | |
   o |  2:261ad3f3f037  rename sub/ to stuff/
   |/
   o  1:334e5237836d  add sub/*
   |
   o  0:d4892ec57ce2  add large, normal1
   
   $ hg locate -r 2
   .hglf/large
   .hglf/stuff/maybelarge.dat
   normal1
   stuff/normal2
   $ hg locate -r 3
   .hglf/large
   .hglf/sub/maybelarge.dat
   normal1
   normal3
   sub/normal2
   $ hg locate -r 4
   .hglf/sub/maybelarge.dat
   normal1
   sub/normal2
   $ hg locate -r 5
   .hglf/stuff/maybelarge.dat
   normal1
   stuff/normal2
   $ hg update
   3 files updated, 0 files merged, 0 files removed, 0 files unresolved
   getting changed largefiles
   1 largefiles updated, 0 removed
   $ cat stuff/normal2
   alsonormal
   blah
   $ "$TESTDIR/md5sum.py" stuff/maybelarge.dat
   1dd0b99ff80e19cff409702a1d3f5e15  stuff/maybelarge.dat
   $ cat .hglf/stuff/maybelarge.dat
   76236b6a2c6102826c61af4297dd738fb3b1de38
   $ cd ..
 
 "lfconvert" error cases
   $ hg lfconvert http://localhost/foo foo
   abort: http://localhost/foo is not a local Mercurial repo
   [255]
   $ hg lfconvert foo ssh://localhost/foo
   abort: ssh://localhost/foo is not a local Mercurial repo
   [255]
   $ hg lfconvert nosuchrepo foo
   abort: repository nosuchrepo not found!
   [255]
   $ hg share -q -U bigfile-repo shared
   $ printf 'bogus' > shared/.hg/sharedpath
   $ hg lfconvert shared foo
   abort: .hg/sharedpath points to nonexistent directory $TESTTMP/bogus! (glob)
   [255]
   $ hg lfconvert bigfile-repo largefiles-repo
   initializing destination largefiles-repo
   abort: repository largefiles-repo already exists!
   [255]
 
 add another largefile to the new largefiles repo
   $ cd largefiles-repo
   $ dd if=/dev/zero bs=1k count=1k > anotherlarge 2> /dev/null
   $ hg add --lfsize=1 anotherlarge
   $ hg commit -m "add anotherlarge (should be a largefile)"
   $ cat .hglf/anotherlarge
   3b71f43ff30f4b15b5cd85dd9e95ebc7e84eb5a3
   $ cd ..
 
 round-trip: converting back to a normal (non-largefiles) repo with
 "lfconvert --to-normal" should give the same as ../bigfile-repo
   $ cd largefiles-repo
   $ hg lfconvert --to-normal . ../normal-repo
   initializing destination ../normal-repo
   $ cd ../normal-repo
   $ cat >> .hg/hgrc <<EOF
   > [extensions]
   > largefiles = !
   > EOF
 
 # Hmmm: the changeset ID for rev 5 is different from the original
 # normal repo (../bigfile-repo), because the changelog filelist
 # differs between the two incarnations of rev 5: this repo includes
 # 'large' in the list, but ../bigfile-repo does not. Since rev 5
 # removes 'large' relative to the first parent in both repos, it seems
 # to me that lfconvert is doing a *better* job than
 # "hg remove" + "hg merge" + "hg commit".
 #  $ hg -R ../bigfile-repo debugdata -c 5
 #  $ hg debugdata -c 5
   $ hg glog --template "{rev}:{node|short}  {desc|firstline}\n"
   o  6:1635824e6f59  add anotherlarge (should be a largefile)
   |
   o    5:7215f8deeaaf  merge
   |\
   | o  4:7285f817b77e  remove large, normal3
   | |
   | o  3:67e3892e3534  add normal3, modify sub/*
   | |
   o |  2:c96c8beb5d56  rename sub/ to stuff/
   |/
   o  1:020c65d24e11  add sub/*
   |
   o  0:117b8328f97a  add large, normal1
   
   $ hg update
   4 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg locate
   anotherlarge
   normal1
   stuff/maybelarge.dat
   stuff/normal2
   $ [ -d .hg/largefiles ] && echo fail || echo pass
   pass