merges r28361 from trunk into ruby_1_9_2.

--
* ext/psych/lib/psych/visitors/to_ruby.rb (resolve_klass): fix the
  exception message when attempting to load an unknown class.  Thanks
  nobu! [ruby-dev:41399]

* test/psych/test_psych.rb: test for the exception message

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28481 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 4 insertions, 4 deletions

diff --git a/ext/psych/lib/psych/visitors/to_ruby.rb b/ext/psych/lib/psych/visitors/to_ruby.rb
index e28ac7bf87..ffff636d8e 100644
--- a/ext/psych/lib/psych/visitors/to_ruby.rb
+++ b/ext/psych/lib/psych/visitors/to_ruby.rb
@@ -246,13 +246,13 @@ module Psych
 
         begin
           path2class(name)
-        rescue ArgumentError => ex
-          name    = "Struct::#{name}"
+        rescue ArgumentError, NameError => ex
           unless retried
-            retried = true
+            name    = "Struct::#{name}"
+            retried = ex
             retry
           end
-          raise ex
+          raise retried
         end
       end
     end