title: Discord.js Issue with ".addRole"
body: <p>So, I have been having issues setting up a bot that roles a user to a role that includes emoticons. Example:</p>
  
  <pre><code>    const guildMember = message.member;
      guildMember.addRole('&lt;@&amp;439191493169643521&gt;');
  </code></pre>
  
  <p>I've also tried:</p>
  
  <pre><code>    // content.js
      const guildMember = message.member;
      guildMember.addRole(config.n);
  
      // config.json
      {
          "n": "Fox"
      }
  </code></pre>
  
  <p>and also I've tried it without config.json, and just put the raw rank name, but it always doesn't work.</p>
  
  <p>This is the Console:</p>
  
  <pre><code>      (node:15600) UnhandledPromiseRejectionWarning: Unhandled promise rejection (rejection id: 1): TypeError: Supplied parameter was neither a Role nor a Snowflake.
        (node:15600) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.
  </code></pre>