[Preview] Swift-Syntax Prebuilts for Macros

[dschaefer2 (Doug Schaefer)]

@dschaefer2

I'll take a look at #2. So this is a plugin that depends on an executable (called a plugin tool) that also uses swift-syntax. Thanks for all your help finding that.

Ah, I see @dfed. You have a library of extensions to swift-syntax that's used both in the macros and build plugin tool. That's causing the two environments to mix. Sorry about that. Thanks again for finding this. I'll work on a solution.