Add struct forward declaration parsing support
Re-add include guard indentation removal
Remove duplicate DIVIDER nodes
Remove DIVIDERs at BOF/EOF, and any NOPs
lex: Handle form feed character as TK_DIVIDER instead of TK_BYTE
Recognize size_t, int8_t and other typedefs
Add support for simple parameter initializer expressions
Add support for array parameters, turning them into pointers
Add pass to remove redundant typedefs