feat: Extend diagnostics hook to async and require

[timfish]

The async Module.register hooks run on a separate loader thread, so the diagnostics hook set on the main thread was never called on that path.

• createDiagnosticsPort() returns a MessagePort to pass to Module.register via data.diagnosticsPort and transferList; the loader thread posts transform diagnostics back over it to the hook set with setDiagnosticsHook.
• The Module.prototype._compile patch now emits diagnostics too, since it is what transforms CommonJS on this path.

ESM diagnostics on the async path arrive asynchronously and the port does not keep the process alive.

[isaacs]

This is the correct way to do it. 👍