[vala] Do not depend on declaration order for constants

[Jürg Billeter <juergbi src gnome org>]

commit 785c538f95b1fd0d63def6de41204d63a481c075
Author: Jürg Billeter <j bitron ch>
Date:   Sat Jun 5 14:07:23 2010 +0200

    Do not depend on declaration order for constants
    
    Fixes bug 618890.

 codegen/valaccodememberaccessmodule.vala |    4 +++-
 1 files changed, 3 insertions(+), 1 deletions(-)
---
diff --git a/codegen/valaccodememberaccessmodule.vala b/codegen/valaccodememberaccessmodule.vala
index f21113e..6143a4f 100644
--- a/codegen/valaccodememberaccessmodule.vala
+++ b/codegen/valaccodememberaccessmodule.vala
@@ -175,7 +175,9 @@ public class Vala.CCodeMemberAccessModule : CCodeControlFlowModule {
 		} else if (expr.symbol_reference is Constant) {
 			var c = (Constant) expr.symbol_reference;
 
-			generate_constant_declaration (c, source_declarations);
+			generate_constant_declaration (c, source_declarations,
+				c.source_reference != null && expr.source_reference != null &&
+				c.source_reference.file == expr.source_reference.file);
 
 			string fn = c.get_full_name ();
 			if (fn == "GLib.Log.FILE") {