void, etc.
* Miscellaneous Types::		Pointers, sets, files, etc.
* Cross-References::		Referring to a type not yet defined.
* Subranges::			A type with a specific range.
* Arrays::			An aggregate type of same-typed elements.
* Strings::			Like an array but also has a length.
* Enumerations::		Like an integer but the values have names.
* Structures::			An aggregate type of different-typed elements.
* Typedefs::			Giving a type a name.
* Unions::			Different types sharing storage.
* Function Types::