tests: loosen restriction

The MachO tests can run on any target, but require that the x86 backend
is available.  Broaden the coverage of the test.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@353012 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/tools/llvm-objcopy/MachO/real-world-input-copy.test b/test/tools/llvm-objcopy/MachO/real-world-input-copy.test
index d29c2cc..d8e68a2 100644
--- a/test/tools/llvm-objcopy/MachO/real-world-input-copy.test
+++ b/test/tools/llvm-objcopy/MachO/real-world-input-copy.test
@@ -1,4 +1,3 @@
-REQUIRES: system-darwin
 # RUN: llvm-mc -assemble -triple i386-apple-darwin9 -filetype=obj %p/Inputs/macho.32.s -o %t.32.o
 # RUN: llvm-objcopy %t.32.o %t.32.copy.o
 # RUN: cmp %t.32.o %t.32.copy.o
@@ -6,3 +5,5 @@
 # RUN: llvm-mc -assemble -triple x86_64-apple-darwin9 -filetype=obj %p/Inputs/macho.64.s -o %t.64.o
 # RUN: llvm-objcopy %t.64.o %t.64.copy.o
 # RUN: cmp %t.64.o %t.64.copy.o
+
+# REQUIRES: x86-registered-target