[vala/0.40] vala: Fully qualify member-access when using-directive was used to resolve

[Rico Tzschichholz <ricotz src gnome org>]

commit 2f3a9539814e6a926bab178db0880fc0a7eacf98
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Jul 15 17:46:58 2020 +0200

    vala: Fully qualify member-access when using-directive was used to resolve
    
    Fixes https://gitlab.gnome.org/GNOME/vala/issues/57

 vala/valamemberaccess.vala | 11 +++++++++++
 1 file changed, 11 insertions(+)
---
diff --git a/vala/valamemberaccess.vala b/vala/valamemberaccess.vala
index 9bc492948..bd56184a5 100644
--- a/vala/valamemberaccess.vala
+++ b/vala/valamemberaccess.vala
@@ -311,6 +311,17 @@ public class Vala.MemberAccess : Expression {
                                                        Report.error (source_reference, "`%s' is an ambiguous 
reference between `%s' and `%s'".printf (member_name, symbol_reference.get_full_name (), 
local_sym.get_full_name ()));
                                                        return false;
                                                }
+
+                                               // Transform to fully qualified member access
+                                               unowned Symbol? inner_sym = local_sym.parent_symbol;
+                                               unowned MemberAccess? inner_ma = this;
+                                               while (inner_sym != null && inner_sym.name != null) {
+                                                       inner_ma.inner = new MemberAccess (null, 
inner_sym.name, source_reference);
+                                                       inner_ma = (MemberAccess) inner_ma.inner;
+                                                       inner_sym = inner_sym.parent_symbol;
+                                               }
+                                               inner.check (context);
+
                                                symbol_reference = local_sym;
                                        }
                                }