Method withModuleDo

lib/llvm/llvm.h:2131–2134

    swap(LHS.Ref, RHS.Ref);
  }
  Error withModuleDo(LLVMOrcGenericIRModuleOperationFunction F,
                     void *Ctx) noexcept {
    return LLVMOrcThreadSafeModuleWithModuleDo(Ref, F, Ctx);
  }

private:
  LLVMOrcThreadSafeModuleRef Ref = nullptr;