From cc7151108000351e31e6119b946bf9163ffa5d50 Mon Sep 17 00:00:00 2001
From: Vitalii Elenhaupt <velenhaupt@gmail.com>
Date: Fri, 4 May 2018 16:25:44 +0300
Subject: [PATCH] Use Var#special_var? to check if var is special

---
 src/ameba/ast/variabling/variable.cr | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/ameba/ast/variabling/variable.cr b/src/ameba/ast/variabling/variable.cr
index 3d3ce705..f7641b70 100644
--- a/src/ameba/ast/variabling/variable.cr
+++ b/src/ameba/ast/variabling/variable.cr
@@ -29,7 +29,7 @@ module Ameba::AST
 
     # Returns true if it is a special variable, i.e `$?`.
     def special?
-      name =~ /^\$/
+      @node.special_var?
     end
 
     # Assigns the variable (creates a new assignment).