Fix compiler crasher on type alias with a cycle in the constraints #26653
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rdar://problem/52463696 SR-11052
slavapestov
approved these changes
Aug 15, 2019
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Fix a compiler crash and display an error when in a cycle on validateDecl and associated type inference. We might be able to break the actual cycle with our work on validateDecl.
rdar://problem/52463696
SR-11052