Convert the uses of '|&' to use '2>&1 |' instead, which works on old
versions of Bash. In addition, I can back out the change to the lit
built-in shell test runner to support this.

This should fix the majority of fallout on Darwin, but I suspect there
will be a few straggling issues.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@159544 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/test/Feature/load_module.ll b/test/Feature/load_module.ll
index 05f6c23..14c1153 100644
--- a/test/Feature/load_module.ll
+++ b/test/Feature/load_module.ll
@@ -1,6 +1,6 @@
 ; PR1318
 ; RUN: opt < %s -load=%llvmshlibdir/LLVMHello%shlibext -hello \
-; RUN:   -disable-output |& grep Hello
+; RUN:   -disable-output 2>&1 | grep Hello
 ; REQUIRES: loadable_module
 ; FIXME: On Cygming, it might fail without building LLVMHello manually.