Doug Gregor 82e1c98e46 [Serialize] Serialize uniqued generic signatures. ...

Rather than inlining generic signatures in a half dozen places throughout
the serialization format, serialize (uniqued) generic signatures with their
own GenericSignatureID. Update various layouts (generic function types,
SIL function types, generic environments, extension cross-references) to
use GenericSignatureID.

Shaves ~187k off the size of Swift.swiftmodule.

2017-11-07 13:36:22 -08:00

70 KiB

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