Slava Pestov 4496a03a56 IRGen: Force emission of lazy witness table when conformance descriptor is referenced ...

Otherwise with the new resilient witness table emission pattern, we might miss
conformances for refined protocols, since the witness table itself is never
referenced, only the conformance descriptor is.

Fixes <rdar://problem/46133018>.

2018-11-21 22:25:50 -05:00

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