bug #265 Fix 'plugin' typehint on Encore.addPlugin (Blackskyliner)

This PR was merged into the master branch.

Discussion
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Fix 'plugin' typehint on Encore.addPlugin

The `plugin` parameter is described as `{string}` but in fact we want to have instances of a Webpack plugin here. So I think we should use `object` here, which reflects the fact that all examples and known usages use an object there...

Commits
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6d9525a Fix 'plugin' typehint on Encore.addPlugin

Author: weaverryan

index.js

@@ -292,7 +292,7 @@ class Encore {
      *
      *      Encore.addPlugin(new MyWebpackPlugin(), PluginPriorities.DefinePlugin);
      *
-     * @param {string} plugin
+     * @param {object} plugin
      * @param {number} priority
      * @returns {Encore}
      */