Jonathan Penn be5babf28c Add experimental flag to turn on just opaque type erasure (#60172) ...

This was already enabled as part of `-enable-implicit-dynamic` but this
new flag allows turning on opaque type erasure all by itself whether or
not `dynamic` is added explicitly.

rdar://97375478

2022-07-22 23:43:22 -04:00

250 KiB

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