bug#16480: 24.3.50; fontification in the definition of ert tests names does not highlight full symbol

[Nicolas Richard]

Hello,

Running: 
emacs -Q -l ert testfile.el

with the following content of testfile.el:
(ert-deftest latex-movement ...)
(defun latex-movement ...)

will highlight only 'latex' in the first line, instead of the whole
symbol 'latex-movement'. Second line is just there to check that it
works for defun.

Here's a fix:

diff --git a/lisp/emacs-lisp/ert.el b/lisp/emacs-lisp/ert.el
index 4b11860..ee058a8 100644
--- a/lisp/emacs-lisp/ert.el
+++ b/lisp/emacs-lisp/ert.el
@@ -1469,7 +1469,7 @@ the tests)."
   "Activate font-lock keywords for some of ERT's symbols."
   (font-lock-add-keywords
    nil
-   '(("(\\(\\<ert-deftest\\)\\>\\s *\\(\\sw+\\)?"
+   '(("(\\(\\<ert-deftest\\)\\>\\s *\\(\\(?:\\sw\\|\\s_\\)+\\)?"
       (1 font-lock-keyword-face nil t)
       (2 font-lock-function-name-face nil t)))))

-- 
Nico.