| // RUN: %swift-target-frontend -typecheck -verify %s | |
| protocol Command {} | |
| struct A : Command {} | |
| struct B : Command {} | |
| // This used to crash in Xcode 9 GM, and fails with a diagnostic in more | |
| // recent swift-4.0-branch builds, because we incorrectly infer the type | |
| // of the array literal as [Any]. | |
| let a = Array<Command.Type>([A.self, B.self]) |