Path package:ghc
A collection of paths that must be deleted before ghc exits.
Where the .dyn_hi file is, whether or not it exists yet.
Where the .dy file is, whether or not it exists yet.
Where the .hi file is, whether or not it exists yet. Always of form
foo.hi, even if there is an hi-boot file (we add the -boot suffix
later)
Where the .hie file is, whether or not it exists yet.
The source file, if we have one. Package modules probably don't have
source files.
Where the .o file is, whether or not it exists yet. (might not exist
either because the module hasn't been compiled yet, or because it is
part of a unit with a .a file)
Type representing filenames/pathnames.
This type doesn't add any guarantees over
OsString.
Where are we allowed to look for Modules and Source files