[vala/0.46] vala: Don't issue a warning for non-public struct fields in bindings

[Rico Tzschichholz <ricotz src gnome org>]

commit eb125e434866462439dd330d69c30ec0ca6a0997
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Sat Oct 5 12:18:19 2019 +0200

    vala: Don't issue a warning for non-public struct fields in bindings

 vala/valaparser.vala | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
---
diff --git a/vala/valaparser.vala b/vala/valaparser.vala
index 754d50cb5..83885b235 100644
--- a/vala/valaparser.vala
+++ b/vala/valaparser.vala
@@ -2670,7 +2670,8 @@ public class Vala.Parser : CodeVisitor {
                        f.binding = MemberBinding.CLASS;
                }
 
-               if (parent is Struct && f.access != SymbolAccessibility.PUBLIC && f.binding == 
MemberBinding.INSTANCE) {
+               if (!parent.external_package && parent is Struct
+                   && f.access != SymbolAccessibility.PUBLIC && f.binding == MemberBinding.INSTANCE) {
                        Report.warning (f.source_reference, "accessibility of struct fields can only be 
`public`");
                }