Speeding up importing Phobos files

[Nick Sabalausky (Abscissa)]

On 6/7/19 8:50 AM, KnightMare wrote:
> zip-archive allows you to unpack the file in its original form.
> unpacking allows to see source code.
> 

That's an interesting approach to the issue: Just allow a package to be 
either a directory tree OR a tar/tarball archive of a directory tree. 
Then, the language itself wouldn't need any provisions at all to support 
multiple packages in one file, and the compiler could still read an 
entire multi-module package by accessing only one file.