[vala] codegen: Always copy struct on access only when it's non-nullable

[Luca Bruno <lucabru src gnome org>]

commit 1a49420d4b5eca305acdae4caef934e801439abe
Author: Luca Bruno <lucabru src gnome org>
Date:   Tue Aug 16 22:36:05 2011 +0200

    codegen: Always copy struct on access only when it's non-nullable
    
    We currently don't copy the nullable struct, only the reference,
    therefore useless.

 codegen/valaccodememberaccessmodule.vala |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/codegen/valaccodememberaccessmodule.vala b/codegen/valaccodememberaccessmodule.vala
index 569e1dc..2978ce8 100644
--- a/codegen/valaccodememberaccessmodule.vala
+++ b/codegen/valaccodememberaccessmodule.vala
@@ -697,7 +697,7 @@ public abstract class Vala.CCodeMemberAccessModule : CCodeControlFlowModule {
 		if (variable is Parameter && variable.name == "this") {
 			use_temp = false;
 		}
-		if (variable.single_assignment && !result.value_type.is_real_struct_type ()) {
+		if (variable.single_assignment && !result.value_type.is_real_non_null_struct_type ()) {
 			// no need to copy values from variables that are assigned exactly once
 			// as there is no risk of modification
 			// except for structs that are always passed by reference