various GLib tests: plug memory leaks

These don't really matter, since it's test code, but they do obscure
real leaks in the library.

Signed-off-by: Simon McVittie <simon.mcvittie@collabora.co.uk>
Bug: https://bugzilla.gnome.org/show_bug.cgi?id=666115
Acked-by: Matthias Clasen <mclasen@redhat.com>

gobject/tests/boxed.c

@@ -56,6 +56,8 @@ test_define_boxed (void)
   g_assert_cmpstr (b->bla, ==, "bla");
 
   g_boxed_free (MY_TYPE_BOXED, b);
+
+  g_free (a.bla);
 }
 
 static void

gobject/tests/param.c

@@ -25,6 +25,7 @@ test_param_value (void)
   g_param_spec_unref (p2);
 
   g_value_unset (&value);
+  g_param_spec_unref (pp);
 }
 
 static gint destroy_count;