(name name)
  name: a sym

Defines the name of a class.

That name will be returned by the class-name function and the @class-name abbreviation.

All mixins must have a name clause. Names defined in the toplevel scope of a mixin are qualified as MixinName:item, rather than the usual Main:item.

This clause is automatically generated by defstruct, let-class, and similar macros.