In cpplint, permit Dodxygen C++ annotations, which come after members

In cpplint, permit Dodxygen C++ annotations, which come after members, e.g.
  int var; //!< Brief description after the member
or
  int var; ///< Brief description after the member

Cf. http://www.stack.nl/~dimitri/doxygen/manual/docblocks.html#memberdoc


Currently, cpplint accepts comments after members, cf.
http://google-styleguide.googlecode.com/svn/trunk/cppguide.xml?showone=Implementation_Comments#Implementation_Comments
and it accepts also the doxygen comments of the type "///" (followed by a new line) and
"/// " (followed by a comment). Only the Doxygen annotations, which come
after members are rejected, which is fixed by this patch.

[burnus, 2013-10-30 13:22:02]

Permit after-member Doxygen comments

Re-diff and added unit tests.

[burnus, 2013-10-30 13:26:07]

I think it is a rather simple and obvious patch - hence, I'd pleased if you
could review it.

I re-diffed it for the recent cpplint changes and to add unittests.

[erg, 2013-10-30 19:14:33]

mmentovai: What do you think? The style guide, internal or open-source, doesn't
actually mention doxygen at all, but the checker already has incomplete support
for doxygen, mentioned by name, so I'm leaning towards accept, based on
consistency.

[erg, 2013-10-31 19:47:48]

Thank you for your patch. It has been committed as
https://code.google.com/p/google-styleguide/source/detail?r=116.