message: opt plugin: restore doInitialization method
diff: @@ -347,6 +347,11 @@ struct TVLegacyPass final : public llvm::ModulePass {
  }
  }
  + bool doInitialization(llvm::Module &module) override {
  + initialize(module);
  + return false;
  + }
  +
  static void initialize(llvm::Module &module) {
  if (initialized++)
  return;
  