Remove string-based struct parsing
Implement parsing simple, undefined structs
Handle structures with definitions
Correct advancement past a simple struct
Correct advancement past a defined struct
Extract PARSE-STRUCT
rename to PARSE-TYPE/INTERNAL
Reorganize a little
Rename encoded-type-chars to chars, remove let
Handle bracket nesting
Return list of members
PARSE-TYPE provides a list of members
A parsed struct has the correct number of members
Extract PARSE-AGGREGATE-TYPE-MEMBERS
Use Objective-C mode to compile objc.scm
Add some ObjCisms
Support for unions
Extract AGGREGATE-KIND type
Rename STRUCT-NAME -> NAME
Rename IN-DEFN? -> AFTER-=?