Slava Pestov e805339de4 RequirementMachine: Relax assertion in verifyRewriteSystem() ...

We can end up with a rule that has a protocol symbol on the right hand side:

    X.Y.Z => X.W.[P]

This will occur if X.W.[P] was obtained by simplifying a term X.W.U.V via
a rule (U.V => [P]), and before completion discovers a rule
(X.W.[P] => X.W).

Fixes rdar://problem/94854326, rdar://problem/94980084.

2022-06-17 16:13:42 -04:00

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