Adding a macro to the protocol causes the generated properties to be unfindable.

[cushiro]

Description

version:510.0.2

Steps to Reproduce

No response

[cushiro]

[ahoppen]

Synced to Apple’s issue tracker as rdar://131824098

[ahoppen]

This seems to be about Marcos during compilation and not a cause of swift-syntax, so I’m moving the issue to the compiler repo.