(byte-compile-last-line): Deleted.

(byte-compile-last-line): Deleted.
(byte-compile-delete-first): New function.
(byte-compile-read-position): New variable.
(byte-compile-last-position): New variable.
(byte-compile-current-buffer): New variable.
(byte-compile-log-1): Use it.
(byte-compile-set-symbol-position): New function.
(byte-compile-obsolete, byte-compile-callargs-warn)
(byte-compile-arglist-warn, byte-compile-arglist-warn)
(byte-compile-print-syms, byte-compile-file-form-defmumble)
(byte-compile-check-lambda-list, byte-compile-lambda)
(byte-compile-form, byte-compile-variable-ref)
(byte-compile-subr-wrong-args, byte-compile-negation-optimizer)
(byte-compile-condition-case, byte-compile-defun)
(byte-compile-defvar, byte-compile-autoload)
(byte-compile-lambda-form): Use it.
(byte-compile-from-buffer): Set it, and bind
`read-with-symbol-positions' and `read-symbol-positions-list'.
(byte-compile-debug): New variable.