[mutter] (3 commits) Non-fast-forward update to branch gbsneto/installed-tests

[Georges Basile Stavracas Neto <gbsneto src gnome org>]

The branch 'gbsneto/installed-tests' was changed in a way that was not a fast-forward update.
NOTE: This may cause problems for people pulling from the branch. For more information,
please see:

 https://wiki.gnome.org/Git/Help/NonFastForward

Commits removed from the branch:

  42195e3... cogl/tests: Append test output to log file
  7b76e13... Add Meson support for installed tests
  9ec9876... meta/tests: Remove commented lines
  570e800... meson: Print some configure flags

Commits added to the branch:

  fb59671... Add Meson support for installed tests (*)
  ad8cc8e... meta/tests: Remove commented lines (*)
  11046d3... meson: Print some configure flags (*)

(*) This commit already existed in another branch; no separate mail sent