message: Fix an issue in r317563 causing a clang assert
diff: @@ -2181,8 +2181,8 @@ ClangASTContext::CreateEnumerationType(const char *name, DeclContext *decl_ctx,
  EnumDecl *enum_decl = EnumDecl::Create(
  *ast, decl_ctx, SourceLocation(), SourceLocation(),
  name && name[0] ? &ast->Idents.get(name) : nullptr, nullptr,
  - is_scoped,
  - true, // IsScopedUsingClassTag
  + is_scoped, // IsScoped
  + is_scoped, // IsScopedUsingClassTag
  false); // IsFixed
  if (enum_decl) {
  