Add #includes now that MachineInstr.h doesn't include llvm/Target/MachineInstrInfo.h

llvm-svn: 4327
diff --git a/llvm/lib/CodeGen/MachineInstr.cpp b/llvm/lib/CodeGen/MachineInstr.cpp
index df633c6..cd439e3 100644
--- a/llvm/lib/CodeGen/MachineInstr.cpp
+++ b/llvm/lib/CodeGen/MachineInstr.cpp
@@ -4,6 +4,7 @@
 
 #include "llvm/CodeGen/MachineInstr.h"
 #include "llvm/Value.h"
+#include "llvm/Target/MachineInstrInfo.h"  // FIXME: shouldn't need this!
 using std::cerr;