Prepare environment (with Compenv.readenv) before executing script passed on the toplevel command-line.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15412 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Fix PR#6593: Functor application in tests/basic-modules fails

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15413 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
#6582: make backport of #5904 more backwards compatible.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15414 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
#6585: fix memory leak in win32unix/createprocess.c.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15417 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Integrate simple change from constructors_with_record4.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15423 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Factorize.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15424 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Cleanup.

git-svn-id: http://caml.inria.fr/svn/ocaml/trunk@15425 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02
Sync with trunk.

git-svn-id: http://caml.inria.fr/svn/ocaml/branches/constructors_with_record4@15428 f963ae5c-01c2-4b8c-9fe0-0dff7051ff02