| // RUN: not %swift -fake-argument -abcdef -c %s -o %t.o 2>&1 | %FileCheck %s | |
| // CHECK: <unknown>:0: error: unknown argument: '-fake-argument' | |
| // CHECK-NEXT: <unknown>:0: error: unknown argument: '-abcdef' | |
| // RUN: not %swiftc_driver -c %s -o %t.o -Xfrontend -fake-frontend-arg -Xfrontend fakevalue 2>&1 | %FileCheck -check-prefix=XFRONTEND %s | |
| // XFRONTEND: <unknown>:0: error: unknown argument: '-fake-frontend-arg' |