[vala] Fix code generated for interface implementations with error mismatch

[Jürg Billeter <juergbi src gnome org>]

commit 073f3eaf718ad51776dabf21c408a28622f7d421
Author: Jürg Billeter <j bitron ch>
Date:   Sun Mar 21 23:30:20 2010 +0100

    Fix code generated for interface implementations with error mismatch
    
    Fixes bug 598862.

 codegen/valaccodemethodmodule.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/codegen/valaccodemethodmodule.vala b/codegen/valaccodemethodmodule.vala
index 49ca331..39f264a 100644
--- a/codegen/valaccodemethodmodule.vala
+++ b/codegen/valaccodemethodmodule.vala
@@ -120,7 +120,7 @@ internal class Vala.CCodeMethodModule : CCodeStructModule {
 			}
 		}
 
-		if (m.get_error_types ().size > 0 || (m.base_method != null && m.base_method.get_error_types ().size > 0)) {
+		if (m.get_error_types ().size > 0 || (m.base_method != null && m.base_method.get_error_types ().size > 0) || (m.base_interface_method != null && m.base_interface_method.get_error_types ().size > 0)) {
 			foreach (DataType error_type in m.get_error_types ()) {
 				generate_type_declaration (error_type, decl_space);
 			}