Don't use <sstream> in Streams.h but <iosfwd> instead.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@32340 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/Target/CBackend/CBackend.cpp b/lib/Target/CBackend/CBackend.cpp
index 7c0d433..3cfd6d0 100644
--- a/lib/Target/CBackend/CBackend.cpp
+++ b/lib/Target/CBackend/CBackend.cpp
@@ -42,7 +42,7 @@
 #include "llvm/Support/MathExtras.h"
 #include "llvm/Config/config.h"
 #include <algorithm>
-#include <ios>
+#include <sstream>
 using namespace llvm;
 
 namespace {