I added a new function that returns a metadata node directly instead of wrapping it in a value, which IIRC is now the recommended approach.
This is especially useful for getting debug info metadata from global variables.
Note that this is a breaking change for the Go bindings. I think this is fine because having a metadata-wrapped-as-value wasn't really usable anyway from the API and the old API was inconsistent with SetMetadata (which accepts a Metadata instead of a Value object). Also, I couldn't find any uses of the Metadata() call in llgo and I can tell you that it is not used in TinyGo.