MC/Mach-O: Move to MachObjectWriter.{h,cpp}.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@98952 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/CMakeLists.txt b/lib/MC/CMakeLists.txt
index 682fe24..dba0e14 100644
--- a/lib/MC/CMakeLists.txt
+++ b/lib/MC/CMakeLists.txt
@@ -19,5 +19,6 @@
   MCStreamer.cpp
   MCSymbol.cpp
   MCValue.cpp
+  MachObjectWriter.cpp
   TargetAsmBackend.cpp
   )