[vala/staging: 2/3] vala: Both arguments of NC_() must be constant for this call to be constant

[Rico Tzschichholz <ricotz src gnome org>]

commit 76991c852385e73c666f3c47f1a48ce4bb7bdbd8
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Wed Jan 23 17:35:09 2019 +0100

    vala: Both arguments of NC_() must be constant for this call to be constant

 vala/valamethodcall.vala | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)
---
diff --git a/vala/valamethodcall.vala b/vala/valamethodcall.vala
index 56b73648c..fc1bfed11 100644
--- a/vala/valamethodcall.vala
+++ b/vala/valamethodcall.vala
@@ -120,8 +120,8 @@ public class Vala.MethodCall : Expression {
                                // first argument is string
                                return argument_list[0].is_constant ();
                        } else if (method_type.method_symbol.get_full_name () == "GLib.NC_") {
-                               // second argument is string
-                               return argument_list[1].is_constant ();
+                               // first and second argument is string
+                               return argument_list[0].is_constant () && argument_list[1].is_constant ();
                        }
                }