> 2. In isearch, CL macro expansion results in symbols like
>    isearch--state-forward--cmacro having function definitions that
>    include the two doc strings "Access slot \"forward\" of
>    `(isearch--state (:constructor nil) [...]" and
>    "\n\n(fn CL-WHOLE-ARG CL-X)".  The former string is also in DOC (with
>    "\n\n(fn CL-X)" appended) as the documentation for the function
>    isearch--state-forward.
>
>    It appears that, as far as the Emacs help system is concerned,
>    isearch--state-*--cmacro functions are undocumented.
>
>    The --cmacro functions generate cl-block forms that include the
>    original doc string, since it's treated as part of the body, but it's
>    not clear to me whether it has any use there at all, or if it could
>    just be discarded, or perhaps looked up via the non --cmacro symbols
>    at run time if it is of use.

I think it is just an oversight, since the string was put inside the
cl-block it is not recognized as a docstring at all.  Patch 0002 drops
the function's docstring from compiler-macro and adds a simple
"compiler-macro for inlining `NAME'" instead.