(std11-qtext-regexp): Use `eval-when-compile'; don't use

(std11-qtext-regexp): Use `eval-when-compile'; don't use
`char-list-to-string'.
(std11-quoted-string-regexp): Use `eval-when-compile'.
Use `def-edebug-spec' to define edebug-form-spec of mm-define-method;
fix definition of edebug-form-spec of mm-define-method.