jit: Fix TODOs
raw: jit: Handle jit-arch.h properly
Merge branch 'raw'

Conflicts:
	inc/jit.bi
jit: Fix TODOs based on fbc's existing libjit header
jit: Fix jit_opcode_info forward decl
tests: Add jit
jit: Fix dummyid (too long for fbc)
jit: Remove unnecessary forward decls
jit: Add #inclib