match: compose 'set:' pattern as matcher Baby step towards porting fileset to matcher composition. We can't use the exactmatcher since it would provide a computed set as exact paths. That's why we use the predicatematcher with fset.__contains__. This will be cleaned up later. The test change in test-glog.t means that the "set:copied()" pattern is no longer be processed as a slow path. That's because the fset is empty. This will also change in future patches.

#require clang-format test-repo

  $ . "$TESTDIR/helpers-testrepo.sh"

  $ cd "$TESTDIR"/..
  $ for f in `testrepohg files 'set:(**.c or **.cc or **.h) and not "listfile:contrib/clang-format-ignorelist"'` ; do
  >   clang-format --style file $f > $f.formatted
  >   cmp $f $f.formatted || diff -u $f $f.formatted
  >   rm $f.formatted
  > done