bug#43025: re-export-public-interface fails on Guile 3

[Dale Smith]

And here has some better error handling/reporting.

(define-syntax re-export-public-interface
  (syntax-rules ()
    "Re-export the public interface of a module or modules. Invoked as
@code{(re-export-public-interface (mod1) (mod2) ...)}."
    ((_ (m0 m0* ...) (mn mn* ...) ...)
     (let ((iface (module-public-interface (current-module))))
       (define (r-e-p-i module)
         (cond-expand
          (guile-3
           (module-for-each
            (lambda (sym val)
              (hashq-set! (module-replacements iface) sym #t)
              (module-add! iface sym val))
            (resolve-interface module)))
          (else
           (module-use! iface (resolve-interface module)))))
       (r-e-p-i '(m0 m0* ...))
       (r-e-p-i '(mn mn* ...))
       ...))
    ((_)
     (syntax-violation 're-export-public-interface
                       "must provide one or more module names"
                       '(re-export-public-interface)))
    ((_ m m* ...)
     (syntax-violation 're-export-public-interface
                       "module names must look like lists"
                       '(re-export-public-interface m m* ...)))))