Reflection: Fix layout of Set, Dictionary and other fixed-size multi-payload enums [3.1] #6898
+40
−38
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For generic multi-payload enums, we would proceed down the
dynamic layout path without checking for a builtin descriptor.
As a result Set and Dictionary were always reported as being
9 bytes in size and not 8. Oops...
Fixes rdar://problem/30066015.