Add a XCoreTargetStreamer and port over the simple uses of EmitRawText.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200167 91177308-0d34-0410-b5e6-96231b3b80d8
Add missing file.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200169 91177308-0d34-0410-b5e6-96231b3b80d8
Use emitRawComment instead of EmitRawText.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200170 91177308-0d34-0410-b5e6-96231b3b80d8
Add back spaces I missed in the conversion to emitRawComments.

Sorry about that.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200171 91177308-0d34-0410-b5e6-96231b3b80d8
Remove dead code.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@200174 91177308-0d34-0410-b5e6-96231b3b80d8