[gnome-builder/gnome-builder-3-28] xml-pack: free matching state struct

[Christian Hergert <chergert src gnome org>]

commit 8c3b2d4cb5463cd4098d234a7b09c1506091d46c
Author: Christian Hergert <chergert redhat com>
Date:   Mon Jun 18 17:12:51 2018 -0700

    xml-pack: free matching state struct

 src/plugins/xml-pack/ide-xml-completion-provider.c | 2 ++
 1 file changed, 2 insertions(+)
---
diff --git a/src/plugins/xml-pack/ide-xml-completion-provider.c 
b/src/plugins/xml-pack/ide-xml-completion-provider.c
index da09c22c3..808682b50 100644
--- a/src/plugins/xml-pack/ide-xml-completion-provider.c
+++ b/src/plugins/xml-pack/ide-xml-completion-provider.c
@@ -461,6 +461,8 @@ matching_state_free (MatchingState *state)
   g_clear_pointer (&state->prefix, g_free);
   g_clear_pointer (&state->children, g_ptr_array_unref);
   g_clear_pointer (&state->stack, g_array_unref);
+
+  g_slice_free (MatchingState, state);
 }
 
 static MatchingState *