Place subpages in module and class expressions more carefully.
Place subpages in module and class expressions more carefully.

We now place the subpage on the right hand side part of the
definition, including the separator.

More precisely:
- module Foo (= Bar)
- module Foo (: Bar)
- module type Foo (: Bar)
- class foo (: bar)
- class type foo (= bar)

ocaml-doc/odoc,ocaml-doc/odoc