[5.1][ConstraintSystem] Use lightweight conformance check in determining w… #25384
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…hether literal could be initialized via coercion Currently logic to transform call into coercion uses `conformsToProtocol` to validate that type conforms to one of the ExpressibleBy*Literal protocols. That function doesn't handle unbound generic parameters and would result in an infinite loop or a crash when not all of the generic parameters were explicitly specified for one of the types in the chain e.g. `A.B(42)` where `A` has at least one generic parameter. Resolves: rdar://problem/50007727 (cherry picked from commit a80fa91)
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There was an unrelated crash In LLDB... |
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…hether literal could be initialized via coercion
Currently logic to transform call into coercion uses
conformsToProtocolto validate that type conforms to one of the ExpressibleBy*Literal protocols.
That function doesn't handle unbound generic parameters and would result in
an infinite loop or a crash when not all of the generic parameters were
explicitly specified for one of the types in the chain e.g.
A.B(42)where
Ahas at least one generic parameter.Resolves: rdar://problem/50007727
(cherry picked from commit a80fa91)