Fix MessageMentions#has not returning true for role mentions (#1840)
Fix MessageMentions#has not returning true for role mentions (#1840)


robflop/discord.js,hydrabolt/discord.js,appellation/discord.js,appellation/discord.js,Lewdcario/discord.js,hydrabolt/discord.js,Drahcirius/discord.js,hydrabolt/discord.js,CodeMan99/discord.js,Drahcirius/discord.js,CodeMan99/discord.js,SpaceEEC/discord.js,appellation/discord.js,Lewdcario/discord.js,robflop/discord.js,Lewdcario/discord.js,Drahcirius/discord.js,robflop/discord.js,SpaceEEC/discord.js,CodeMan99/discord.js,SpaceEEC/discord.js