PR#6243: Make "ocamlopt -g" more resistant to ill-formed locations.
(Reflecting commit r14321 on version/4.01)



git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14322 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Debug info was lost when rescheduling "checkbound" instructions.


git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14323 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Bring stack backtraces up-to-date on PowerPC, incl. reraise.
Tested on PowerPC/Linux.  Needs testing on PowerPC/MacOS X.


git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@14324 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02