tests/test-inotify-issue1371.t

encoding: add fast-path for ASCII uppercase.

This copies the performance hack from encoding.lower (c481761033bd).

The case-folding logic that kicks in on case-insensitive filesystems
hits encoding.upper hard: with a repository with 75k files, the
timings went from

  hg perfstatus
  ! wall 3.156000 comb 3.156250 user 1.625000 sys 1.531250 (best of 3)

to

  hg perfstatus
  ! wall 2.390000 comb 2.390625 user 1.078125 sys 1.312500 (best of 5)

This is a 24% decrease. For comparison, Mercurial 2.0 gives:

  hg perfstatus
  ! wall 2.172000 comb 2.171875 user 0.984375 sys 1.187500 (best of 5)

so we're only 10% slower than before we added the extra case-folding
logic.

The same decrease is seen when executing 'hg status' as normal, where
we go from:

  hg status --time
  time: real 4.322 secs (user 2.219+0.000 sys 2.094+0.000)

to

  hg status --time
  time: real 3.307 secs (user 1.750+0.000 sys 1.547+0.000)

  $ "$TESTDIR/hghave" inotify || exit 80
  $ hg init 
  $ touch a b c d e f
  $ echo "[extensions]" >> $HGRCPATH
  $ echo "inotify=" >> $HGRCPATH

inserve

  $ hg inserve -d --pid-file=hg.pid 2>&1
  $ cat hg.pid >> "$DAEMON_PIDS"
  $ hg ci -Am m
  adding a
  adding b
  adding c
  adding d
  adding e
  adding f
  adding hg.pid

let the daemon finish its stuff

  $ sleep 1

eed to test all file opperations

  $ hg rm a
  $ rm b
  $ echo c >> c
  $ touch g
  $ hg add g
  $ hg mv e h
  $ hg status
  M c
  A g
  A h
  R a
  R e
  ! b
  $ sleep 1

Are we able to kill the service? if not, the service died on some error

  $ kill `cat hg.pid`