[vala/staging] girparser: Decrease return_array_length_idx for transformed function

[Rico Tzschichholz <ricotz src gnome org>]

commit 4fb11562ee7bdec234d486d16a154da7b493a8d5
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Mon Mar 2 23:56:57 2020 +0100

    girparser: Decrease return_array_length_idx for transformed function

 vala/valagirparser.vala | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/vala/valagirparser.vala b/vala/valagirparser.vala
index 6d6f767d8..1e0d9a939 100644
--- a/vala/valagirparser.vala
+++ b/vala/valagirparser.vala
@@ -4115,6 +4115,7 @@ public class Vala.GirParser : CodeVisitor {
                                        ns.remove_member (node);
                                        node.name = new_name;
                                        node.parameters.remove_at (0);
+                                       node.return_array_length_idx--;
                                        method.name = new_name;
                                        method.binding = MemberBinding.INSTANCE;
                                        parent.add_member (node);