[Issue 14654] rdmd should compile package at a time

[via Digitalmars-d-bugs]

https://issues.dlang.org/show_bug.cgi?id=14654

--- Comment #3 from Vladimir Panteleev <thecybershadow at gmail.com> ---
Yes, they are orthogonal. But:

1. It is potentially higher-impact. Even with per-package compilation, DMD will
still need to lex/parse/etc. ALL modules.

2. Any improvements we make now to rdmd may be harder to migrate into dmd

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