bug#15070: 24.3.50.1; eval-buffer ignores the buffer local value of lexical-binding.

[E Sabof]

In emacs -Q:

    M-: (setq lexical-binding t)

paste the following:

    (funcall

     (let ((a 5))

       (lambda ()

         a)))

M-x eval-buffer

The error (void-variable a) will be thrown.

The snippet will be evaluated correctly, only if one inserts 

    ;; -*- lexical-binding:t -*-

on the first line