Joe Groff 63d08c786d SIL: Handle metatype abstraction differences. ...

Lower metatype types as @thin or @thick based on whether the type is static and whether the abstraction pattern allows for a thin metatype. Add a '@thick' attribute and require SIL metatypes to always be annotated with either '@thin' or '@thick' to distinguish them from unlowered metatypes.

Swift SVN r11525

2013-12-20 23:06:16 +00:00

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