[vala/0.46] vala: Fix circular reference in Property

[Rico Tzschichholz <ricotz src gnome org>]

commit d5fed96f8595831018ede9f20096624ab3dd92b2
Author: Princeton Ferro <princetonferro gmail com>
Date:   Sun Mar 1 09:54:13 2020 +0100

    vala: Fix circular reference in Property

 vala/valaproperty.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/vala/valaproperty.vala b/vala/valaproperty.vala
index cdf18ed1d..4d01c98d7 100644
--- a/vala/valaproperty.vala
+++ b/vala/valaproperty.vala
@@ -223,7 +223,7 @@ public class Vala.Property : Symbol, Lockable {
        private DataType _data_type;
 
        private weak Property _base_property;
-       private Property _base_interface_property;
+       private weak Property _base_interface_property;
        private bool base_properties_valid;
        PropertyAccessor? _get_accessor;
        PropertyAccessor? _set_accessor;