Warning messages on expansion never have data.recoverable.

[robross0606]

When handling warnings, the documentation says data.recoverable should be available:

recoverable Boolean. If false, then the warning will emit an error, even in non-strict mode.

However, I have yet to see a warning message come thru with any recoverable property at all when expanding a file. I expected recoverable to be set to true if the warning is recoverable, but the documentation is unclear in this regard. Do false and falsy mean different things here? Under what conditions would one expect to see a recoverable property?

[robross0606]

I'm also seeing that data.file never seems to be available on warnings when using x().