| // RUN: %target-typecheck-verify-swift -solver-expression-time-threshold=1 | |
| // REQUIRES: tools-release,no_asserts | |
| // REQUIRES: rdar38378503 | |
| // expected-no-diagnostics | |
| let a: [Double] = [] | |
| _ = a.map { $0 - 1.0 } | |
| .map { $0 * $0 } | |
| .reduce(0, +) / Double(a.count) |