Fix Windows build by including CGFunctionInfo.h.

CodeGenTypes.h instantiates llvm::FoldingSet<> with CGFunctionInfo,
and VC++ doesn't like the static_cast from FoldingSetImpl::Node* to
CGFunctionInfo* since it hasn't seen the definition of CGFunctionInfo
and that it inherits from FoldingSetImpl::Node.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@193722 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenTypes.h b/lib/CodeGen/CodeGenTypes.h
index 90cfcfd..94ca9e2 100644
--- a/lib/CodeGen/CodeGenTypes.h
+++ b/lib/CodeGen/CodeGenTypes.h
@@ -16,6 +16,7 @@
 
 #include "CGCall.h"
 #include "clang/AST/GlobalDecl.h"
+#include "clang/CodeGen/CGFunctionInfo.h"
 #include "llvm/ADT/DenseMap.h"
 #include "llvm/IR/Module.h"
 #include <vector>