Add missing includes.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79474 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/AsmPrinter/DwarfException.cpp b/lib/CodeGen/AsmPrinter/DwarfException.cpp
index aacb33b..829879b 100644
--- a/lib/CodeGen/AsmPrinter/DwarfException.cpp
+++ b/lib/CodeGen/AsmPrinter/DwarfException.cpp
@@ -15,6 +15,7 @@
 #include "llvm/Module.h"
 #include "llvm/CodeGen/MachineModuleInfo.h"
 #include "llvm/CodeGen/MachineFrameInfo.h"
+#include "llvm/CodeGen/MachineFunction.h"
 #include "llvm/CodeGen/MachineLocation.h"
 #include "llvm/MC/MCStreamer.h"
 #include "llvm/Target/TargetAsmInfo.h"