| // RUN: %empty-directory(%t) | |
| // | |
| // RUN: not %target-swift-frontend -typecheck %s -parse-stdlib 2>%t/fallback_diagnostic.txt | |
| // RUN: %FileCheck %s --check-prefix FALLBACK-DIAGNOSTIC <%t/fallback_diagnostic.txt | |
| // | |
| // FALLBACK-DIAGNOSTIC: error: failed to produce diagnostic for expression; please file a bug report | |
| import Swift | |
| Builtin.trigger_fallback_diagnostic() |