(message-get-reply-buffer): Abolished.

(message-get-reply-buffer): Abolished.
(message-get-original-reply-buffer): Abolished.
(message-get-parameter): New inline function.
(message-get-parameter-with-eval): New macro.
(message-fetch-reply-field): Do not use `message-get-reply-buffer'.
(message-yank-original): Ditto.
(message-setup): Use `message-get-parameter'.
(message-mime-insert-article): Use `message-get-parameter-with-eval' instead
of`message-get-original-reply-buffer'.