Description:
------------
ReflectionMethod::getDocComment returns the wrong comment when one of method's arguments also have a comment.

This worked correctly in PHP5.x

Real world use-case for this would be for example having /** @noinspect */ annotations at the argument for static analysis tools.

See also https://3v4l.org/tR6i5

Test script:
---------------
<?php

class Foo {
    /**
     * Correct docblock
     */
    public function bar(
        /** wrong dockblock */
        $arg
    ) {
        
    }
}

$reflection = new ReflectionClass(Foo::class);

echo $reflection->getMethod('bar')->getDocComment();

Expected result:
----------------
/**
     * Correct docblock
     */

Actual result:
--------------
/** wrong dockblock */