[at-spi2-core] Fix atspi_accessible_get_index_in_parent when the parent is not cached

[Mike Gorse <mgorse src gnome org>]

commit 09915497d014e3ea9a146fa6ef8eb4fa94756708
Author: Mike Gorse <mgorse suse com>
Date:   Mon Nov 19 15:34:26 2012 -0600

    Fix atspi_accessible_get_index_in_parent when the parent is not cached
    
    Atspi_accessible_get_index_in_parent was returning -1 if the object's
    parent is NULL, regardless of whether the accessible_parent field is
    currently valid.
    
    https://bugzilla.gnome.org/show_bug.cgi?id=688057

 atspi/atspi-accessible.c |    7 +++++--
 1 files changed, 5 insertions(+), 2 deletions(-)
---
diff --git a/atspi/atspi-accessible.c b/atspi/atspi-accessible.c
index 92f74e7..7971bd3 100644
--- a/atspi/atspi-accessible.c
+++ b/atspi/atspi-accessible.c
@@ -489,8 +489,11 @@ atspi_accessible_get_index_in_parent (AtspiAccessible *obj, GError **error)
   gint i = 0;
 
   g_return_val_if_fail (obj != NULL, -1);
-  if (!obj->accessible_parent) return -1;
-  if (!_atspi_accessible_test_cache (obj->accessible_parent,
+  if (_atspi_accessible_test_cache (obj, ATSPI_CACHE_PARENT) &&
+      !obj->accessible_parent)
+    return -1;
+  if (!obj->accessible_parent ||
+      !_atspi_accessible_test_cache (obj->accessible_parent,
                                      ATSPI_CACHE_CHILDREN))
   {
     dbus_int32_t ret = -1;