Andrew Kelley 0ad1239522 rework enums and unions and their relationship to each other ... * @enumTagName renamed to @tagName and it works on enums and union-enums * Remove the EnumTag type. Now there is only enum and union, and the tag type of a union is always an enum. * unions support specifying the tag enum type, and they support inferring an enum tag type. * Enums no longer support field types but they do support setting the tag values. Likewise union-enums when inferring an enum tag type support setting the tag values. * It is now an error for enums and unions to have 0 fields. * switch statements support union-enums closes #618		2017-12-03 20:43:56 -05:00
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394.zig	rework enums and unions and their relationship to each other	2017-12-03 20:43:56 -05:00