Fix compilation-find-file advice for dirs without direct files

Fixes #1923

When compilation output references a file via a relative path, the
advice now also checks if the file exists relative to the project root
and adds its parent directory to the search path. This handles the
edge case where a directory only contains subdirectories (no files
directly) and therefore was not included in the file-derived directory
list from projectile-current-project-dirs.

0 files changed, 0 insertions, 0 deletions