[libpeas] Cleanup the tests thread local data

[Garrett Regier <gregier src gnome org>]

commit b410af079ad2bbb41f6c070d760d9608878b41ca
Author: Garrett Regier <garrettregier gmail com>
Date:   Mon Sep 21 22:08:52 2015 -0700

    Cleanup the tests thread local data
    
    This fixes various tools not realizing that
    the data has been taken care of correctly.

 tests/testing-util/testing-util.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/tests/testing-util/testing-util.c b/tests/testing-util/testing-util.c
index 0c2569a..396f2bf 100644
--- a/tests/testing-util/testing-util.c
+++ b/tests/testing-util/testing-util.c
@@ -261,9 +261,12 @@ testing_util_run_tests (void)
 
   retval = g_test_run ();
 
-  /* Cannot call this with atexit() because
-   * gcov does not register that it was called.
+  /* Cleanup various data early otherwise some
+   * tools, like gcov, will not process it correctly
    */
+  g_private_replace (&engine_key, NULL);
+  g_private_replace (&unhandled_key, NULL);
+  g_private_replace (&log_hooks_key, NULL);
   peas_engine_shutdown ();
 
   return retval;