* test/lisp/emacs-lisp/lisp-tests.el (elisp-tests-with-temp-buffer):
Don't refer to the =!NAME= as "markers" since they produce variables
with just plain positions, not marker objects. Explicitly specify
that CONTENTS is evaluated at compile time. Don't re-evaluate
CONTENTS at runtime. Fix debug specification. Suppress warnings due
to BODY not using =!NAME= variables.
(elisp-test-point-position-regex): Rename from
`elisp-test-point-marker-regex'.
(mark-defun-test-buffer): Wrap in `eval-and-compile'.
* test/lisp/progmodes/elisp-mode-tests.el (mark-defun-test-buffer):
New variable
(mark-defun-no-arg-region-inactive)
(mark-defun-no-arg-region-active)
(mark-defun-arg-region-active)
(mark-defun-pos-arg-region-inactive)
(mark-defun-neg-arg-region-inactive, mark-defun-bob): Add tests for
the new `mark-defun'.
* lisp/emacs-lisp/lisp.el (beginning-of-defun--in-emptyish-line-p):
New function.
(beginning-of-defun-comments): New function.
(mark-defun): Fix bug#21072, also rewrite large parts of `mark-defun'
to accept a numerical prefix argument.
* test/lisp/emacs-lisp/lisp-tests.el
(elisp-test-point-marker-regex) New variable.
(elisp-tests-with-temp-buffer): New macro to help test functions
moving the point and/or mark.
