prune the #includes in raw_ostream.h by moving a

member out of line. ftostr is not particularly speedy,
so that method is presumably not perf sensitive.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@79885 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/InstrInfoEmitter.cpp

@@ -15,6 +15,7 @@
 #include "InstrInfoEmitter.h"
 #include "CodeGenTarget.h"
 #include "Record.h"
+#include "llvm/ADT/StringExtras.h"
 #include <algorithm>
 using namespace llvm;