* module/ice-9/boot-9.scm (define-module): Fix to load the #:use-module
clauses in the order in which they appear in the define-module form.
Thanks to Jan Nieuwenhuizen for the report.
* test-suite/standalone/test-import-order: Add new test that
define-module and use-modules resolve the interface in the right
order.
* test-suite/standalone/Makefile.am:
* test-suite/standalone/test-import-order-a.scm:
* test-suite/standalone/test-import-order-b.scm:
* test-suite/standalone/test-import-order-c.scm:
* test-suite/standalone/test-import-order-d.scm: Aux files.
