Silencing a -Wreturn-type warning, as the switch is fully-covered; NFC.

git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@234884 91177308-0d34-0410-b5e6-96231b3b80d8

tools/lli/OrcLazyJIT.cpp

@@ -103,6 +103,7 @@ OrcLazyJIT::TransformFtor OrcLazyJIT::createDebugDumper() {
              return std::move(M);
            };
   }
+  llvm_unreachable("Unknown DumpKind");
 }
 
 int llvm::runOrcLazyJIT(std::unique_ptr<Module> M, int ArgC, char* ArgV[]) {