MFC:

MFC:
  r199955: disable job control when running 'sh -i' in the testsuite
  r204801: make sure to popredir() even if a special builtin caused an error
  r204802: make sure to popredir() even if a function caused an error
  r211399: get rid of unnecessary non-standard empty lists.
  r211609: add a test for breaking from a loop outside the current function
  r211622: test that all bytes from 128 to 255 can be used in IFS
  r211973: weaken builtins/command4 test to only require a non-0 exit status

git-svn-id: svn://svn.freebsd.org/base/stable/8@214045 ccf9f872-aa2e-dd11-9fc8-001c23d0bc1f