split MachO section handling stuff out to its out .h/.cpp file.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@78576 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/MC/MCAsmStreamer.cpp b/lib/MC/MCAsmStreamer.cpp
index 7dcca7b..5457913 100644
--- a/lib/MC/MCAsmStreamer.cpp
+++ b/lib/MC/MCAsmStreamer.cpp
@@ -11,7 +11,7 @@
 
 #include "llvm/MC/MCContext.h"
 #include "llvm/MC/MCInst.h"
-#include "llvm/MC/MCSection.h"
+#include "llvm/MC/MCSectionMachO.h"
 #include "llvm/MC/MCSymbol.h"
 #include "llvm/MC/MCValue.h"
 #include "llvm/Support/ErrorHandling.h"