Add missing include to clang-interpreter example, to make it work on Windows. Patch by Dean Pavlekovic.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@141324 91177308-0d34-0410-b5e6-96231b3b80d8

examples/clang-interpreter/main.cpp

@@ -22,6 +22,7 @@
 #include "llvm/ADT/OwningPtr.h"
 #include "llvm/ADT/SmallString.h"
 #include "llvm/Config/config.h"
+#include "llvm/ExecutionEngine/JIT.h"
 #include "llvm/ExecutionEngine/ExecutionEngine.h"
 #include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/raw_ostream.h"