variablize.rb in facets-2.9.0.pre.1

- old
+ new

@@ -1,12 +1,14 @@
 class Symbol
 
-  # Prepend an "@" to the beginning of a symbol
-  # to make a instance variable name. This also replaces
-  # non-valid characters with underscores.
-
+  # Prepend an "@" to the beginning of a symbol to make a instance
+  # variable name. This also replaces non-valid characters with underscores.
+  #
+  #   :a.variablize  #=> :"@a"
+  #
   def variablize
-    "@#{self}".gsub(/\W/, '_').to_sym
+    name = to_s.gsub(/\W/, '_')
+    "@#{name}".to_sym
   end
 
 end
 