Re: [Pre-RFC][Discussion] Native Engine-Level PSR-4 Autoloader

Here is an example script i whipped up. ```php // vendor/autoload.php example spl_autoload_psr4_enable(); spl_autoload_psr4_register('Acme\\Blog\\', __DIR__ . '/src/'); spl_autoload_psr4_register('Acme\\Blog\\Tests\\', __DIR__ . '/tests/', prepend: true); // Our script.php: new \Acme\Blog\Post(); // Engine (C level): // - normalizes prefix "Acme\Blog\Tests\" first (prepend) // - no local match → "Acme\Blog\" // - match → relative = "Post" // - candidate = src/Post.php // - if file exists → include it (silently on failure) → if class now defined, success else normal undefined class error. // - else fall through to any userspace spl_autoload stack ```