PHP: Fixed an issue where a trait used in an anonymous class was defined as being used in a wrapper class

[troizet]

Fixed an issue where a trait used in an anonymous class was defined as being used in a wrapper class.

Example:

<?php

trait MyTrait
{
    abstract function doSomething();

    public function doNothing()
    {

    }
}

class MysClass
{
    public function getObject()
    {
        return new class() {

            public function getMyTraitAwareObject()
            {
                return new class() {
                    use MyTrait;

                    public function doSomething()
                    {

                    }
                };
            }
        };
    }
}

• Fixed the ImplementAbstractMethodsHintError hint for the above case [Anonymous class using a trait with asbtract method inside another class #8527]

before:

after:

• Fixed incorrect detection of the used trait in the navigator for the above case

before:

after:

• Fixed tests NavigatorTest
• Added new tests in NavigatorTest and ImplementAbstractMethodsHintErrorTest

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^Add meaningful description above

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[tmysik]

LGTM but please, wait for @junichi11, if possible. Thank you!