* eval_error.c (error_print): clear raised_flag while error-printing
  to avoid hang. [ruby-core:27608]

* test/ruby/test_beginendblock.rb (test_endblock_raise): add test for
  above.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/branches/ruby_1_9_2@28370 b2dd03c8-39d4-4d8f-98ff-823fe69b080e