[PATCH 0/3] MR1477: Search and load separate debug info from users's debuginfod cache directory.

[eric pouech (＠epo)]

This serie allow to load alternate debug info from user's debuginfo cache.

This series (as is) will not bring lots of value as:
- no support for loading the missing debug info files (they should have been
  been loaded beforehand)
- most of these files are in Dwarf5 format, that we don't support yet.