I noticed this while writing some code the other day, I created a static inline void function and run s_fast and didn't get any errors. It wasn't until a bit later I realized that should be WT_INLINE

From a quick grep it looks like we don't do WT_INLINE in test code so we'd need to make sure it applies to src/ only.

Scope:

1. Add a new rule to the dist scripts, ideally by updating a script and not creating a new one but this is flexible
2. Test

cc: jeremy.thorp@mongodb.com