[TableGen] Call llvm_shutdown on exit so that all the ManagedStatic objects in the support library will be deleted.

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@256731 91177308-0d34-0410-b5e6-96231b3b80d8

utils/TableGen/TableGen.cpp

@@ -13,6 +13,7 @@
 
 #include "TableGenBackends.h" // Declares all backends.
 #include "llvm/Support/CommandLine.h"
+#include "llvm/Support/ManagedStatic.h"
 #include "llvm/Support/PrettyStackTrace.h"
 #include "llvm/Support/Signals.h"
 #include "llvm/TableGen/Error.h"
@@ -244,6 +245,8 @@ int main(int argc, char **argv) {
   PrettyStackTraceProgram X(argc, argv);
   cl::ParseCommandLineOptions(argc, argv);
 
+  llvm_shutdown_obj Y;
+
   return TableGenMain(argv[0], &ClangTableGenMain);
 }