Macro lambda lists do not accept dotted lists (again) & dotted lists with quasiquote

[Gleefre]

Describe the bug
Same as #106:

(defmacro foo (x . y))
(macrolet ((foo (x . y))))

both result in

Condition of type: TYPE-ERROR
Y is not of type LIST.
Available restarts:
(use :r1 to invoke restart 1, etc.)

1. (RESTART-TOPLEVEL) Go back to Top-Level REPL.

(ERROR TYPE-ERROR :DATUM Y :EXPECTED-TYPE LIST)

Context
Tested on the current head version.

(lisp-implementation-version) ; => "clasp-boehmprecise-3.0.1-67-gda70d6ff1-non-cst"

Some minor analysis
This seems to be caused by the following lines:

clasp/src/cross-clasp/macrology.lisp

Lines 122 to 125 in da70d6f

	(defun cross-clasp.clasp.ext:parse-macro (name lambda-list body &optional env)
	(ecclesia:parse-macro-using-canonicalization name lambda-list body env
	`((lambda-name (macro-function ,name))
	(lambda-list ,@lambda-list))))

Changing (lambda-list ,@lambda-list) to ,(list* 'lambda-list lambda-list) or something similar would likely solve the issue.

Quasiquote
The code above causes an issue because per hyperspec, `(,@list) could be treated as both (append dotted-list nil) and (list* list), meaning that whether list can be a dotted list (or a circular list), or if must be a proper list is not quite well-defined.

It seems that Eclector does not allow for dotted lists in this context, thus the error. That also means that this issue would likely be resolved without any changes needed here if this behavior was changed in Eclector, see s-expressionists/Eclector#60.

Note that most other lisp implementations allow for dotted lists in this context. (I tested the following implementations: sbcl, cmucl, ccl, ecl, abcl, clisp, jscl, allegro cl and lispworks; and they all allow it).

Also, there is a good explanation of this issue in the readme of fare-quasiquote, a known portable quasiquote implementation. It itself allows dotted lists by default, although it can be disabled by adding :quasiquote-strict-append to the features before compiling the system.

[Gleefre]

Changing (lambda-list ,@lambda-list) to ,(list* 'lambda-list lambda-list) or something similar would likely solve the issue.

Actually a simpler change would be to (lambda-list . ,lambda-list), which seems to be portable too.