[vala/0.40] vala: Inherit lambda parameter attributes from delegate

[Rico Tzschichholz <ricotz src gnome org>]

commit 248c10f9a35d2b8288609b691882a73dded70f59
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Tue Mar 17 15:26:36 2020 +0100

    vala: Inherit lambda parameter attributes from delegate
    
    ... by setting base_parameter accordingly

 vala/valalambdaexpression.vala | 1 +
 1 file changed, 1 insertion(+)
---
diff --git a/vala/valalambdaexpression.vala b/vala/valalambdaexpression.vala
index f543de963..6937010c1 100644
--- a/vala/valalambdaexpression.vala
+++ b/vala/valalambdaexpression.vala
@@ -195,6 +195,7 @@ public class Vala.LambdaExpression : Expression {
                        }
 
                        lambda_param.variable_type = cb_param.variable_type.get_actual_type (target_type, 
null, this);
+                       lambda_param.base_parameter = cb_param;
                        method.add_parameter (lambda_param);
                }