src/cli/util.js/pushContextPlugins
function pushContextPlugins(context, plugins, pluginSearchDirs) {
  context.stack.push(
    pick(context, [
      "supportOptions",
      "detailedOptions",
      "detailedOptionMap",
      "apiDefaultOptions",
      "languages",
    ])
  );
  updateContextOptions(context, plugins, pluginSearchDirs);
}