File: 0191-issue-51961.swift

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// RUN: %target-swift-frontend -typecheck %s

// https://github.com/apple/swift/issues/51961

protocol P {
    associatedtype A
}

struct S1: P {
    typealias A = Int
}

struct S2<G: P>: P {
    typealias A = G.A
}

struct S3<G: P> {
}

extension S3 where G == S2<S1> {
    typealias B = G.A
}