codegen: Don't emit g_type_add_instance_private() in *_register_type()

This fixes warnings like "sys:1: Warning: cannot add private field to
invalid (non-instantiatable) type ..."

Regression of df56f916e52e5efe3876afed59a6190f6cead1c8

diff --git a/codegen/valatyperegisterfunction.vala b/codegen/valatyperegisterfunction.vala
index c1811d9498560d93642c31b72cbd4560f58b4155..750537500f65127337330c8742d675c31bbc1451 100644 (file)
--- a/codegen/valatyperegisterfunction.vala
+++ b/codegen/valatyperegisterfunction.vala
@@ -213,7 +213,7 @@ public abstract class Vala.TypeRegisterFunction {
                        type_init.add_statement (new CCodeExpressionStatement (add_class_private_call));
                }
 
-               if (cl != null && (cl.has_private_fields || cl.get_type_parameters ().size > 0)) {
+               if (!plugin && cl != null && (cl.has_private_fields || cl.get_type_parameters ().size > 0)) {
                        var ccall = new CCodeFunctionCall (new CCodeIdentifier ("g_type_add_instance_private"));
                        ccall.add_argument (new CCodeIdentifier (type_id_name));
                        ccall.add_argument (new CCodeIdentifier ("sizeof (%sPrivate)".printf (get_ccode_name (cl))));