This change adds support for Guile-style modules, but does not
enable it by default. It can be enabled by using the 'boot-5' boot
script.
* mes/module/mes/guile-module.mes: New file.
* mes/module/mes/boot-5.mes: New file.
* mes/module/mes/boot-0.mes (effective-version, include-from-path)
(define-module, use-modules, effective-version): Move these...
* mes/module/mes/guile.scm: ...here.
* mes/module/mes/boot-0.mes: Move '%main' and the command-line
interface code...
* mes/module/mes/main.mes: ...to this new file.
* mes/module/mes/boot-0.mes: Import '(mes guile)' and '(mes main)'.
* mes/module/ice-9/rdelim.scm: New file.
* tests/data/bar.scm: New file.
* tests/data/foo.scm: New file.
* tests/guile-module.test: New file.
* build-aux/check-mes.sh (TESTS): Add it.
1d7c6d308a