Code location information generated in trans::debuginfo is mostly incorrect

[michaelwoerister]

Especially the file and line information generated for types is rather arbitrary as the span value is just passed to create_type_metadata() from the caller. So the type gets assigned the span of the local variable or argument that happens to be the first to be translated.

This should be easy fix by reading span information from the type definitions in the AST where it makes sense and to omit the span information otherwise.

[jdm]

Can't assign it to you due to github silliness, unfortunately.

[emberian]

Triage bump. Still relevant, @michaelwoerister?

[michaelwoerister]

Yes, still relevant but will probably be fixed soon together with namespace support.