tests/test-profile.t

windows: sanity-check symlink placeholders

On Windows, we store symlinks as plain files with the link contents.
Via user error or NFS/Samba assistance, these files often end up with
'normal' file contents. Committing these changes thus gives an
invalid symlink that can't be checked out on Unix.

Here we filter out any modified symlink placeholders that look
suspicious when computing status:

- more than 1K (looks more like a normal file)
- contain NULs (not allowed on Unix, probably a binary)
- contains \n (filenames can't contain \n, very unusual for symlinks,
  very common for files)

test --time

  $ hg --time help -q help 2>&1 | grep Time > /dev/null
  $ hg init a
  $ cd a

test --profile

  $ if "$TESTDIR/hghave" -q lsprof; then
  >     hg --profile st 2>../out || echo --profile failed
  >     grep CallCount < ../out > /dev/null || echo wrong --profile
  > 
  >     hg --profile --config profiling.output=../out st 2>&1 \
  >         || echo --profile + output to file failed
  >     grep CallCount < ../out > /dev/null \
  >         || echo wrong --profile output when saving to a file
  > 
  >     hg --profile --config profiling.format=text st 2>&1 \
  >         | grep CallCount > /dev/null || echo --profile format=text failed
  > 
  >     echo "[profiling]" >> $HGRCPATH
  >     echo "format=kcachegrind" >> $HGRCPATH
  > 
  >     hg --profile st 2>../out || echo --profile format=kcachegrind failed
  >     grep 'events: Ticks' < ../out > /dev/null || echo --profile output is wrong
  > 
  >     hg --profile --config profiling.output=../out st 2>&1 \
  >         || echo --profile format=kcachegrind + output to file failed
  >     grep 'events: Ticks' < ../out > /dev/null \
  >         || echo --profile output is wrong
  > fi