[glib] (2 commits) Non-fast-forward update to branch wip/smcv/defer-test-cleanup

[Philip Withnall <pwithnall src gnome org>]

The branch 'wip/smcv/defer-test-cleanup' 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:

  91b68b3... Add a test-case for calling g_test_build_filename after g_t
  1a82056... Apply 1 suggestion(s) to 1 file(s)

Commits added to the branch:

  00b17c9... Add a test-case for calling g_test_build_filename after g_t
  f2d67f3... gtestutils: Mark a variable as const