ctf: Add support for arrays or any type.

ctf: Add support for arrays or any type.

A null pointer exception occured for events that contained an array
of something else than "int". For example, an array of struct:

fields := struct {
  ...
  struct {
    string arg_name;
    string arg_value;
  } arguments[4];
};

With this fix, all arrays of CTF types are supported.
Sample output in the "Properties" view: http://i.imgur.com/31tqbgG.png

Change-Id: I3f2be314d1fd2bda8c95b208d018227477572fa8
Signed-off-by: François Doray <fdoray.eclipse@gmail.com>
Reviewed-on: https://git.eclipse.org/r/19029
Reviewed-by: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
IP-Clean: Alexandre Montplaisir <alexmonthy@voxpopuli.im>
Tested-by: Hudson CI
Reviewed-by: Matthew Khouzam <matthew.khouzam@ericsson.com>
IP-Clean: Matthew Khouzam <matthew.khouzam@ericsson.com>
Tested-by: Matthew Khouzam <matthew.khouzam@ericsson.com>