Binds parenthesized expressions

Upsilon/Binder/Binder.cs

@@ -34,7 +34,7 @@ namespace Upsilon.Binder
                 case SyntaxKind.LiteralExpression:
                     return BindLiteralExpression((LiteralExpressionSyntax) e);
                 case SyntaxKind.ParenthesizedExpression:
-                    break;
+                    return BindParenthesizedExpression((ParenthesizedExpressionSyntax) e);
                 case SyntaxKind.AssignmentExpression:
                     break;
                 case SyntaxKind.VariableExpression:
@@ -100,5 +100,10 @@ namespace Upsilon.Binder
             }
             return new BoundLiteralExpression(outValue, type);
         }
+
+        private BoundExpression BindParenthesizedExpression(ParenthesizedExpressionSyntax syntax)
+        {
+            return BindExpression(syntax.Expression);
+        }
     }
 }