Re: master a350ae0: * lisp/emacs-lisp/cconv.el: Improve line-nb info of unused var warnings

[Andrea Corallo]

Merging master into native-comp one of the compiler tests highlighted
the following bug, this is byte-compiler related and I can reproduce it
on master, here reduced:

====
;; -*- lexical-binding: t; -*-
(defun foo (x)
  "foo")
(byte-compile #'foo)
(unless (equal "foo" (foo nil))
  (error "FAIL"))
====

Git bisect is pointing to the commit in subject.

Thanks

  Andrea