lib/parser/ruby19.y in parser-2.3.1.0 vs lib/parser/ruby19.y in parser-2.3.1.1

@@ -1421,9 +1421,10 @@
                       result = val[0] << val[2]
                     }
 
             bvar: tIDENTIFIER
                     {
+                      @static_env.declare val[0][0]
                       result = @builder.shadowarg(val[0])
                     }
                 | f_bad_arg
 
           lambda:   {