Is it possible to add support for class constants?

For example consider:

class SomeType
{
   const TypeA = 1;
   const TypeB = 2;
}

// $type is intended to work with constants from  SomeType class
function SomeTest($type)
{

}

$result = SomeTest(...

Then while writing argument of this function, CC should help by suggesting 2 possible values: SomeType::TypeA  and SomeType::TypeB


BTW I would like to suggest very simmilar behaviour for boolean values.
Let's consider following scenario:

class SomeClass
{
    /**
     *
     * @var boolean
     */
  var $somevar;

  function SomeMethod()
  {
    $this->somevar = ...
  } 

}


While assigning value for $this->somevar, 2 possible values (true and false) might be suggested.

with regards