Doug Gregor 7bb01c743b [SE-0258] Promote projection variables ($foo) to the original property access ...

When the outermost property wrapper associated with a property has a
`wrapperValue`, create the projection property (with the `$` prefix)
at the same access level as the original property. This puts the
wrapped-value interface and the projection interface at the same level.

The newly-introduced @_projectionValueProperty attribute is implicitly
created to establish the link between the original property and the
projection value within module interfaces, where both properties will
be explicitly written out.

2019-06-26 07:39:01 -07:00

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