Add SwiftShader dump from Feb 6 2013

src/LLVM/test/MC/MachO/variable-errors.s

diff --git a/src/LLVM/test/MC/MachO/variable-errors.s b/src/LLVM/test/MC/MachO/variable-errors.s
new file mode 100644
index 0000000..28308c6
--- /dev/null
+++ b/src/LLVM/test/MC/MachO/variable-errors.s
@@ -0,0 +1,8 @@
+// RUN: not llvm-mc -triple x86_64-apple-darwin10 %s -filetype=obj -o %t.o 2> %t.err
+// RUN: FileCheck < %t.err %s
+
+        .data
+t0_a:
+t0_x = t0_a - t0_b
+// CHECK: unable to evaluate offset to undefined symbol 't0_b'
+	.long	t0_x