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swift-mirror/validation-test/compiler_crashers_2_fixed/0162-issue-50552.swift

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Swift

// RUN: %target-typecheck-verify-swift -warn-redundant-requirements
// https://github.com/apple/swift/issues/50552
protocol P {}
struct A<C> {}
extension A: P where A: P {} // expected-warning {{redundant conformance constraint 'A<C>' : 'P'}}