Feature request: Build and return SourceInfos when incremental compilation fails

[adpi2]

When compilation fails, Zinc throws a xsbti.CompileFailed which contains:

• arguments: Array[String]
• problems: Array[Problem]

Based on the previous analysis and the CompileFailed instance I am trying to build an accurate description of the entire codebase but I am lacking information.

I don't know which of the old problems are still valid. Typically, a warning in a file is not reported again if the file is not recompiled, but I don't know if the file has been recompiled or not.

Ideally, the CompileFailed exception could contain an instance of SourceInfos which would give us the list of problems, the old ones that are still valid and the new ones.

At least, as an alternative, I would like to know which files have been recompiled.