Functors contain nested definitions, much like <PRIVATE PRIVATE> blocks.
A new parser will be able to parse nested definitions unambigiously without
knowledge of the definition of <FUNCTOR: itself, which is not the case if
it looks like FUNCTOR: instead.
- Tighten up type inference for operations on complex float arrays
- Fix v. to have correct behavior with complex numbers
- Rename v<< and v>> to vlshift and vrshift to avoid clashing with v>> accessor
- Replace hand-written specialized-arrays.* subvocabularies with new system; instead of USE:ing specialized-arrays.T, do SPECIALIZED-ARRAY: T
- Ditto for specialized-vectors; use SPECIALIZED-VECTOR:
- io.mmap.functor: removed entirely, use <mapped-array> instead
- struct-arrays and struct-vectors have been removed because specialized arrays and vectors subsume them entirely