[vala] codegen: Fix crash on nested try in finally clause

[Jürg Billeter <juergbi src gnome org>]

commit 09e5b132717561d9356b10ed3505ed113daf34cf
Author: Jürg Billeter <j bitron ch>
Date:   Sat Oct 16 13:34:07 2010 +0200

    codegen: Fix crash on nested try in finally clause
    
    Fixes bug 632078.

 codegen/valagerrormodule.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/codegen/valagerrormodule.vala b/codegen/valagerrormodule.vala
index ec0d56f..3a4f77c 100644
--- a/codegen/valagerrormodule.vala
+++ b/codegen/valagerrormodule.vala
@@ -371,7 +371,7 @@ public class Vala.GErrorModule : CCodeDelegateModule {
 			finally_block = (sym.parent_node.parent_node as TryStatement).finally_body;
 		}
 
-		if (finally_block != null) {
+		if (finally_block != null && finally_block != sym) {
 			finally_block.emit (this);
 		}