Description:
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When using opcache preload, I got this message when running my code "Fatal error: Anonymous class wasn't preloaded"

This happens when there is usage of an anonymous class extending a class that was not preloaded (cf test script)

I reproduced this issue with version 7.4.3 of PHP with cli and php-fpm on Mac and Linux

Test script:
---------------
I tried to gather a test script here: https://github.com/laurent35240/test-opcache-preload

Basically, you need to have a class using a anonymous class like in this example
class A
{
    public function getChildOfB() {
        return new class () extends B {};
    }
}

And put only class A and not class B in your opcache preload file.

Running a script calling A::getChildofB will then fail with a fatal error.

Expected result:
----------------
No Fatal Error

Actual result:
--------------
Fatal error: Anonymous class wasn't preloaded