Constructor property promotion not detected properly.

[kapitancho]

There are a few cases which are not detected or incorrectly reported as errors:

1. The promoted constructor properties are incorrectly reported as INFO: PossiblyUnusedParam - 4:44 - Param Allow negated assignment #1 is never referenced in this method: https://psalm.dev/r/f778aa1dc7
2. One can attempt to define a regular property and a promoted property with the same name (side by side) and no error is being reported while it should be: https://psalm.dev/r/7efdfcb849

[psalm-github-bot]

I found these snippets:

https://psalm.dev/r/f778aa1dc7

<?php

class Test {
    public function __construct(public int $id, public string $name) {}
}

$test = new Test(1, 'Name');
echo $test->id;
echo $test->name;

Psalm output (using commit fd43ba7):

INFO: PossiblyUnusedParam - 4:44 - Param #1 is never referenced in this method

INFO: PossiblyUnusedParam - 4:63 - Param #2 is never referenced in this method

https://psalm.dev/r/7efdfcb849

<?php

class Test {
    public int $id;
    public function __construct(public int $id) {}
}

new Test(1);

Psalm output (using commit fd43ba7):

INFO: PossiblyUnusedParam - 5:44 - Param #1 is never referenced in this method

INFO: PossiblyUnusedProperty - 5:44 - Cannot find any references to property Test::$id