* Adds Source Count Macro (#77519)
## About The Pull Request
I prefer this to having people manually read the list, plus it seems
like reasonable information to expose, especially if we're gonna start
using it in this pattern.
## Why It's Good For The Game
Less futzing with internals
* Adds Source Count Macro
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Co-authored-by: LemonInTheDark <58055496+LemonInTheDark@users.noreply.github.com>
a82ab41e19