`var_export()` combined with `enum` produces code unsuitable for inclusion in namespaces

[Ocramius]

Description

Following code: https://3v4l.org/MKPpJ

<?php

namespace A;

enum Foo { case BAR; }

$bar = var_export(Foo::BAR, true);

echo <<<PHP
<?php

namespace Generated\Code;

echo $bar;
PHP;

Resulted in this output:

<?php

namespace Generated\Code;

echo A\Foo::BAR;

But I expected this output instead:

<?php

namespace Generated\Code;

echo \A\Foo::BAR;

To be more specific:

<?php

namespace Generated\Code;

-echo A\Foo::BAR;
+echo \A\Foo::BAR;

This allows for generated PHP expressions (primary use-case of var_export()) to contain enums.

Ref: Ocramius/ProxyManager#754 (comment)

PHP Version

8.1.4

Operating System

No response

[Ocramius]

Seems like this applies to both object and enum definitions - much older bug, exposed by the fact that property default values can now contain constants pointing to object references.