[AIX] XFAIL tests because of no big archive writer operation support

Big archive writer operation is not currently supported so mark these tests XFAIL for now.

Reviewed By: jsji

Differential Revision: https://reviews.llvm.org/D122949

llvm/test/tools/llvm-ar/mri1.test

@@ -1,3 +1,5 @@
+; XFAIL: system-aix
+
 ; RUN: echo create %t.a > %t.mri
 ; RUN: echo save >> %t.mri
 ; RUN: echo end >> %t.mri

llvm/test/tools/llvm-ar/response.test

@@ -1,3 +1,4 @@
+# XFAIL: system-aix
 ## llvm-ar should be able to consume response files.
 
 # RUN: echo 'contents' > %t.txt

llvm/test/tools/llvm-link/archive.ll

@@ -1,3 +1,5 @@
+# XFAIL: system-aix
+
 # RUN: llvm-as %S/Inputs/f.ll -o %t.f.bc
 # RUN: llvm-as %S/Inputs/g.ll -o %t.g.bc
 # RUN: llvm-ar cr %t.fg.a %t.f.bc %t.g.bc

llvm/test/tools/llvm-lipo/create-archive-input.test

@@ -1,3 +1,5 @@
+# XFAIL: system-aix
+
 # RUN: yaml2obj %p/Inputs/i386-slice.yaml -o %t-i386.o
 # RUN: yaml2obj %p/Inputs/x86_64-slice.yaml -o %t-x86_64.o
 # RUN: yaml2obj %p/Inputs/i386-x86_64-universal.yaml -o %t-universal.o

llvm/test/tools/llvm-objcopy/MachO/universal-object.test

@@ -1,3 +1,4 @@
+# XFAIL: system-aix
 # This test verifies that llvm-objcopy copies a univeral Mach-O object file properly.
 
 # RUN: yaml2obj %p/Inputs/i386.yaml -o %t.i386