test/unit.rb: show warning locations

* test/lib/test/unit.rb (ExcludedMethods.load): supply the path to
  show the warning locations.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@54540 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

test/lib/test/unit.rb

@@ -887,7 +887,7 @@ module Test
               nil
             else
               instance ||= new({})
-              instance.instance_eval(src)
+              instance.instance_eval(src, path)
             end
           end
           instance