Specifically report attempts to exit Emacs during test execution

Specifically report attempts to exit Emacs during test execution

* test/infra/android/test-driver.el (ats-in-eval): Fix typo in
doc string.
(ats-eval-as-printed, ats-eval-serial, ats-eval-do-decode):
Render buffer-local.
(ats-executing-form): New variable.
(ats-process-filter): Bind the same around `eval'.
(ats-kill-emacs-function): New function; register it to execute
when Emacs exits.

(cherry picked from commit 749e33bb481eedbefe0fd24124b446f9c47728d5)