[Emacs-ada-mode] Ada 2005 feature: extended return statement

[deadlyhead]

What is the status of Ada 2005 support in ada-mode?  Currently I'm 
trying to use an extended return statement of the following form (taken 
from _Programming in Ada 2005_ by John Barnes):

-- begin example

function Add_To_List (The_List : access Cell,
                      Obj_Ptr  : access Object'Class) return access Cell is
  Local : access Cell := new Cell;
begin
  return Local : access Cell := new Cell do
    Local.Next := The_List;
    Local.Element := Obj_Ptr;
  end return;
end Add_To_List;

-- end example

Attempting to type in the return statement triggers an error from ada-mode:

  Missing 'accept' in front of 'do'

This prevents me from actually entering in a new line after end return;, 
which can be gotten around, but is annoying.  :-/

I'm currently running the version of ada-mode off of the web site, 
version 3.9.  I understand that you have version 4.0 available via Emacs 
CVS, and that you're planning to update the site with this version, 
too.  Does 4.0 have support for extended returns?

I've gone digging through the source of ada-mode.el a bit, but haven't 
quite wrapped my head around where all of the decisions for word 
ordering, indentation, etc, are made, so I'm hesitant to just start 
hacking, especially without the latest version of the code.  If you have 
any suggestions on understanding how this code works, though, I'm 
willing to try adding extended returns to it, though.

-- deadlyhead