Test which operations create an archive and which don't.

RUN: touch %t
RUN: rm -f %t.foo.a
RUN: not llvm-ar p %t.foo.a %t 2>&1 | FileCheck %s
RUN: not llvm-ar d %t.foo.a %t 2>&1 | FileCheck %s
RUN: not llvm-ar m %t.foo.a %t 2>&1 | FileCheck %s
RUN: not llvm-ar t %t.foo.a %t 2>&1 | FileCheck %s
RUN: not llvm-ar x %t.foo.a %t 2>&1 | FileCheck %s

RUN: llvm-ar q %t.foo.a %t 2>&1 | FileCheck --check-prefix=CREATE %s
RUN: rm -f %t.foo.a
RUN: llvm-ar r %t.foo.a %t 2>&1 | FileCheck --check-prefix=CREATE %s
RUN: rm -f %t.foo.a

CHECK: llvm-ar{{(.exe|.EXE)?}}: error: unable to load '{{[^']+}}.foo.a':
CREATE: creating {{.*}}.foo.a