Re-sort includes with sort-includes.py and insert raw_ostream.h where it's used.

llvm-svn: 232998
diff --git a/llvm/lib/Analysis/RegionPass.cpp b/llvm/lib/Analysis/RegionPass.cpp
index 956b12b..cd1e944 100644
--- a/llvm/lib/Analysis/RegionPass.cpp
+++ b/llvm/lib/Analysis/RegionPass.cpp
@@ -17,6 +17,7 @@
 #include "llvm/Analysis/RegionIterator.h"
 #include "llvm/Support/Debug.h"
 #include "llvm/Support/Timer.h"
+#include "llvm/Support/raw_ostream.h"
 using namespace llvm;
 
 #define DEBUG_TYPE "regionpassmgr"