Add tests for the before and after modifiers.

llvm-svn: 186118
diff --git a/llvm/test/Object/archive-move.test b/llvm/test/Object/archive-move.test
index c1c59ad..0378e91 100644
--- a/llvm/test/Object/archive-move.test
+++ b/llvm/test/Object/archive-move.test
@@ -28,3 +28,23 @@
 CHECK-NEXT: oddlen
 CHECK-NEXT: IsNAN.o
 CHECK-NEXT: very_long_bytecode_file_name.bc
+
+RUN: rm -f %t.a
+RUN: cp %p/Inputs/GNU.a %t.a
+RUN: llvm-ar mb evenlen %t.a very_long_bytecode_file_name.bc
+RUN: llvm-ar t %t.a | FileCheck --check-prefix=BEFORE %s
+
+BEFORE: very_long_bytecode_file_name.bc
+BEFORE-NEXT: evenlen
+BEFORE-NEXT: oddlen
+BEFORE-NEXT: IsNAN.o
+
+RUN: rm -f %t.a
+RUN: cp %p/Inputs/GNU.a %t.a
+RUN: llvm-ar ma evenlen %t.a very_long_bytecode_file_name.bc
+RUN: llvm-ar t %t.a | FileCheck --check-prefix=AFTER %s
+
+AFTER: evenlen
+AFTER-NEXT: very_long_bytecode_file_name.bc
+AFTER-NEXT: oddlen
+AFTER-NEXT: IsNAN.o