Add hx4compat library support

[barisyild]

Feature Request

It would be very useful if the hx4compat library could be added as an available dependency in try.haxe.org.

Motivation

• hx4compat provides compatibility helpers for Haxe 4, making it easier to run and test projects that depend on it.
• Adding this library would allow developers to experiment with legacy code and ensure smooth migration when using the playground.

Benefits

• Broader compatibility for code snippets shared on try.haxe.org.
• Makes the playground more representative of real-world projects that rely on hx4compat.
• Improves developer experience for those testing Haxe 4 → Haxe 5 migration paths.

Suggested Solution

Include hx4compat in the list of libraries available to import within try.haxe.org.

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Thanks in advance for considering this request!

[AlexHaxe]

please don't use AI to generate issues.

this could have been an issue without body, because it's self-explanatory, instead it's full of AI vomit, wasting everyone's time.

[barisyild]

please don't use AI to generate issues.

this could have been an issue without body, because it's self-explanatory, instead it's full of AI vomit, wasting everyone's time.

While doing this, my goal was to attract attention because when I looked at the other opened issues, they were all generally short and lacked responses. At least I got a reply and achieved my goal 😂