Joe Groff 9b783560ad Fix @_rawLayout initialization to avoid spurious lifetime ends. ...

We can't really treat them as always-initialized because that makes move checking
think that there's a value to destroy even on initialization, causing deinits to
run on uninitialized memory. Remove my previous hack, and use a `zeroInitializer`
to initialize the value state when emitting `init`, which is where we really need
the bootstrapping-into-initialized behavior. rdar://113057256

2023-08-01 08:34:02 -07:00

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