[vala/wip/transform: 219/253] Fix result var for pre/post conditions

[Rico Tzschichholz <ricotz src gnome org>]

commit 543384c4b141ad9d2d0d3de5e8306c5c9b3bfb5b
Author: Luca Bruno <lucabru src gnome org>
Date:   Sat May 4 11:30:05 2013 +0200

    Fix result var for pre/post conditions

 vala/valasemanticanalyzer.vala |    2 +-
 vala/valasubroutine.vala       |   12 +++++++++++-
 2 files changed, 12 insertions(+), 2 deletions(-)
---
diff --git a/vala/valasemanticanalyzer.vala b/vala/valasemanticanalyzer.vala
index 29b8d2b..6d2017b 100644
--- a/vala/valasemanticanalyzer.vala
+++ b/vala/valasemanticanalyzer.vala
@@ -140,7 +140,7 @@ public class Vala.SemanticAnalyzer : CodeVisitor {
        }
 
        public bool is_local_symbol (Symbol sym) {
-               if ((sym is LocalVariable || sym is Constant) && sym.parent_symbol is Block) {
+               if (sym is LocalVariable || (sym is Constant && sym.parent_symbol is Block)) {
                        return true;
                }
                return false;
diff --git a/vala/valasubroutine.vala b/vala/valasubroutine.vala
index 0ef8bf3..14e2b96 100644
--- a/vala/valasubroutine.vala
+++ b/vala/valasubroutine.vala
@@ -32,10 +32,20 @@ public abstract class Vala.Subroutine : Symbol {
        /**
         * Specifies the generated `result` variable for postconditions.
         */
-       public LocalVariable result_var { get; set; }
+       public LocalVariable result_var {
+               get { return _result_var; }
+               set {
+                       _result_var = value;
+                       if (_result_var != null) {
+                               scope.add ("result", _result_var);
+                       }
+               }
+       }
 
        public abstract bool has_result { get; }
 
+       private LocalVariable _result_var;
+
        protected Subroutine (string? name, SourceReference? source_reference, Comment? comment = null) {
                base (name, source_reference, comment);
        }