[vala/staging] codegen: Use the one available source_reference for internal error

[Rico Tzschichholz <ricotz src gnome org>]

commit 452d0c9c6cbebe3166f9f25ea61c8358f8730332
Author: Rico Tzschichholz <ricotz ubuntu com>
Date:   Tue Mar 9 07:59:25 2021 +0100

    codegen: Use the one available source_reference for internal error
    
    This will at least provide some pointer to where things are going wrong.
    
    In addition to 837d593e00d1a3ca8a6f2d13fb1514bed7672965
    
    See https://gitlab.gnome.org/GNOME/vala/issues/436

 codegen/valaccodearraymodule.vala | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
---
diff --git a/codegen/valaccodearraymodule.vala b/codegen/valaccodearraymodule.vala
index b9352ce73..8eb995f20 100644
--- a/codegen/valaccodearraymodule.vala
+++ b/codegen/valaccodearraymodule.vala
@@ -148,7 +148,7 @@ public class Vala.CCodeArrayModule : CCodeMethodCallModule {
 
                List<CCodeExpression> size = ((GLibValue) value).array_length_cvalues;
                if (size == null || size.size < dim) {
-                       Report.error (null, "internal error: invalid array_length for given dimension");
+                       Report.error (array_type.source_reference, "internal: invalid array_length for given 
dimension");
                        return new CCodeInvalidExpression ();
                }
                return size[dim - 1];