// RUN: not %target-swift-frontend %s -parse

// Distributed under the terms of the MIT license
// Test case submitted to project by https://github.com/practicalswift (practicalswift)
// Test case found by fuzzing

nil
func f<r>() -> (r, r -> r) -> r {
f r f.j = {
}
{
r) {
s  }
}
protocol f {
}
class f: f{func j
}
class r: j {
}
(r().m()
