[ORC][examples] Simplify example -- LLJIT already has a mangleAndIntern method.

We don't need a separate MangleAndInterner here any more.

Author: lhames

llvm/examples/OrcV2Examples/LLJITWithLazyReexports/LLJITWithLazyReexports.cpp

@@ -130,13 +130,12 @@ int main(int argc, char *argv[]) {
   ExitOnErr(J->addIRModule(ExitOnErr(parseExampleModule(MainMod, "main-mod"))));
 
   // (5) Add lazy reexports.
-  MangleAndInterner Mangle(J->getExecutionSession(), J->getDataLayout());
   SymbolAliasMap ReExports(
-      {{Mangle("foo"),
-        {Mangle("foo_body"),
+      {{J->mangleAndIntern("foo"),
+        {J->mangleAndIntern("foo_body"),
          JITSymbolFlags::Exported | JITSymbolFlags::Callable}},
-       {Mangle("bar"),
-        {Mangle("bar_body"),
+       {J->mangleAndIntern("bar"),
+        {J->mangleAndIntern("bar_body"),
          JITSymbolFlags::Exported | JITSymbolFlags::Callable}}});
   ExitOnErr(J->getMainJITDylib().define(
       lazyReexports(*LCTM, *ISM, J->getMainJITDylib(), std::move(ReExports))));