bug#23313: 25.0.92; CC Mode not recognizing function declarations that returns pointer to custom type

[Mohammed Sadik <sadiq@sadiqpk.org>]

c-mode doesn't recognize (or at least colorize as per current rules)
function declarations that returns a pointer (or pointer to pointer) to
custom data types:

Eg., If my c file contains:

     GtkWidget *
     my_window_new (GtkApplication *app);

Its not recognized as a function declaration, while this works:

     GtkWidget
     my_window_new (GtkApplication *app);

Package: CC Mode 5.33

In GNU Emacs 25.0.92.1 (x86_64-unknown-linux-gnu, GTK+ Version 3.18.9)
 of 2016-04-13 built on fedora.localdomain
Windowing system distributor 'Fedora Project', version 11.0.11800000
Configured features:
XPM JPEG TIFF GIF PNG SOUND DBUS GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS
LIBXML2 FREETYPE XFT ZLIB TOOLKIT_SCROLL_BARS GTK3 X11

Important settings:
  value of $LC_MONETARY: en_IN.UTF-8
  value of $LC_NUMERIC: en_IN.UTF-8
  value of $LC_TIME: en_IN.UTF-8
  value of $LANG: en_US.UTF-8
  value of $XMODIFIERS: @im=ibus
  locale-coding-system: utf-8-unix

Major mode: C/l

Minor modes in effect:
  tooltip-mode: t
  global-eldoc-mode: t
  electric-indent-mode: t
  mouse-wheel-mode: t
  tool-bar-mode: t
  menu-bar-mode: t
  file-name-shadow-mode: t
  global-font-lock-mode: t
  font-lock-mode: t
  blink-cursor-mode: t
  auto-composition-mode: t
  auto-encryption-mode: t
  auto-compression-mode: t
  line-number-mode: t
  transient-mark-mode: t
  abbrev-mode: t

Recent messages:
Mark set
Formatting bug report buffer.......
Please enter your report.  Type C-c C-c to send, C-c C-k to abort.
You can run the command ‘c-submit-bug-report’ with C-c C-b
Please enter your report.  Type C-c C-c to send, C-c C-k to abort.
Auto-saving...done
Mark set
Quit
Making completion list... [3 times]
delete-backward-char: Text is read-only

Load-path shadows:
None found.

Features:
(shadow sort mail-extr emacsbug jka-compr info sendmail message dired
format-spec rfc822 mml mml-sec epg epg-config gnus-util mm-decode
mm-bodies mm-encode mail-parse rfc2231 rfc2047 rfc2045 ietf-drums
mm-util help-fns mail-prsvr mailabbrev mail-utils gmm-utils mailheader
reporter cl-extra help-mode cc-mode cc-fonts easymenu cc-guess cc-menus
cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs cl-loaddefs pcase
cl-lib time-date mule-util tooltip eldoc electric uniquify ediff-hook
vc-hooks lisp-float-type mwheel x-win term/common-win x-dnd tool-bar dnd
fontset image regexp-opt fringe tabulated-list newcomment elisp-mode
lisp-mode prog-mode register page menu-bar rfn-eshadow timer select
scroll-bar mouse jit-lock font-lock syntax facemenu font-core frame
cl-generic cham georgian utf-8-lang misc-lang vietnamese tibetan thai
tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian
slovak czech european ethiopic indian cyrillic chinese charscript
case-table epa-hook jka-cmpr-hook help simple abbrev minibuffer
cl-preloaded nadvice loaddefs button faces cus-face macroexp files
text-properties overlay sha1 md5 base64 format env code-pages mule
custom widget hashtable-print-readable backquote dbusbind inotify
dynamic-setting system-font-setting font-render-setting move-toolbar gtk
x-toolkit x multi-tty make-network-process emacs)

Memory information:
((conses 16 115494 15743)
 (symbols 48 22007 0)
 (miscs 40 97 312)
 (strings 32 21591 3488)
 (string-bytes 1 722478)
 (vectors 16 15416)
 (vector-slots 8 462596 12072)
 (floats 8 174 325)
 (intervals 56 547 7)
 (buffers 976 15)
 (heap 1024 49428 2421))