Michael Gottesman 891bd00f66 [sil-deserialization] Implement cache invalidation for all serialized SIL entities and use it to properly invalidate global variables/witness tables when we delete them. ...

Otherwise, one runs into memory corruption. I ran into this while enabling ossa
on the stdlib for non-Darwin platforms.

Hopefully we do not regress on this again when someone adds more optzns that
eliminate these since I added a big NOTE to warn people to do it and implemented
support even for the entities we do not support deleting at the SIL
level... yet.

2021-02-17 13:15:57 -08:00

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