Move test requiring x86 backend into X86 directory.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@143420 91177308-0d34-0410-b5e6-96231b3b80d8

diff --git a/test/DebugInfo/2011-09-26-GlobalVarContext.ll b/test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll
similarity index 100%
rename from test/DebugInfo/2011-09-26-GlobalVarContext.ll
rename to test/DebugInfo/X86/2011-09-26-GlobalVarContext.ll