Emit an error when attempting to generate IR for SEH __try

Currently we silently omit the code in the try and finally bodies, which
is pretty bad.  This way we fail loudly.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@190809 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/lib/CodeGen/CodeGenFunction.h b/lib/CodeGen/CodeGenFunction.h
index 20c0b82..5889d05 100644
--- a/lib/CodeGen/CodeGenFunction.h
+++ b/lib/CodeGen/CodeGenFunction.h
@@ -1838,6 +1838,7 @@
   void ExitCXXTryStmt(const CXXTryStmt &S, bool IsFnTryBlock = false);
 
   void EmitCXXTryStmt(const CXXTryStmt &S);
+  void EmitSEHTryStmt(const SEHTryStmt &S);
   void EmitCXXForRangeStmt(const CXXForRangeStmt &S);
 
   llvm::Function *EmitCapturedStmt(const CapturedStmt &S, CapturedRegionKind K);