- Improve handling of MPI base types

- Use MAKE_DEFINED rather than MAKE_READABLE, as the latter's
  behaviour - changing A bits as well as V bits - can hide 
  addressing problems later



git-svn-id: svn://svn.valgrind.org/valgrind/trunk@5737 a5019735-40e9-0310-863c-91ae7b9d1cf9
1 file changed