swift

68418cd6 - [SE-0302] Crank up `Sendable` to also diagnose in-module missing conformances.

[SE-0302] Crank up `Sendable` to also diagnose in-module missing conformances. Extend the diagnostics for `Sendable` conformances to always diagnose missing `Sendable` conformances for nominal types that are within the same module. The intuition here is that if the type is in the same module, it can be updated and evaluated at the same time as code requiring the `Sendable` conformance is introduced. Another part of rdar://78269348.