goops.test under SCM_DEBUG

[Kevin Ryde]

goops.test fails under SCM_DEBUG=1,

        (eval '(define-class <foo> ()
                 (x #:accessor x #:init-value 123)
                 (z #:accessor z #:init-value 789))
               (current-module))

gives

        Non-pair accessed with SCM_C[AD]R: `#<<class> <foo> b7b08cf0>'

Dunno what it means, but I'd assume it's not good.  Just running the
same define-class is ok, but with the eval it's not.