PHPParser Warnings Function

I use PHPParser in 1.1.0 on jEdit 4.2.0. This warning
feature is nice, thanks for it. Keep up that good work.
But it needs some tweaking :)

First Example:

class foo{
function bar($onevar){
// some things

( 1 == 1 )
? $twovar = $onevar
: $twovar = $threevar;

$blabla = strpos($foo,$twovar);
// some things
}
}

This construct throws "Parameter $onevar seems to be
never used in your method" at the function line. If I
use $twovar later on, it it also warned, that "it is
unassigned yet" at strpos().

Another one:

preg_match_all("foobar",$findhere,$extract);
$foo = $extract[0];

$extract is warned at preg_match line with "unassigned
yet". Logically correct, because the parser does not
know $extract is output from preg_match_all() and is to
be used later on. I can live with it - need not being
fixed soon.

Last but not least:

I use double quotes as limiter in echo (yes, I know
that single quotes are recommended). Variables used in
those expressions seems not to be scanned.

function foo($bar){
echo "hahaha $bar hihihi";
}

This results in $bar is "not used in your method" at
function line. But

function foo($bar){
echo 'hahaha '.$bar.' hihihi';
}

works correctly. I can send screenshots or code
snippets, if you need some. Just contact me
(german/english).

Best wishes
archilles_sw