[OTLayout] Always collect default language system in collect_lookups
Not sure if this is the most desired behavior. It's the most easily
defined though.
diff --git a/src/hb-ot-layout.cc b/src/hb-ot-layout.cc
index 4a86b6b..5c266e6 100644
--- a/src/hb-ot-layout.cc
+++ b/src/hb-ot-layout.cc
@@ -496,6 +496,13 @@
const hb_tag_t *features,
hb_set_t *lookup_indexes /* OUT */)
{
+ _hb_ot_layout_collect_lookups_features (face,
+ table_tag,
+ script_index,
+ HB_OT_LAYOUT_DEFAULT_LANGUAGE_INDEX,
+ features,
+ lookup_indexes);
+
if (!languages)
{
/* All languages */
