* libguile/programs.h (struct scm_program): Remove the module and meta
fields.
* libguile/programs.c (scm_c_make_program): Add a new argument, `objs'.
If it's a vector, we'll look for the module and the metadata in there,
instead of having them in the scm_program structure.
(scm_c_make_closure, program_mark, scm_program_meta)
(scm_c_program_source, scm_program_module): Adapt to the new program
representation.
* libguile/objcodes.c (scm_objcode_to_program): Pass #f as the object
table when making the program.
* libguile/vm-engine.h (CACHE_PROGRAM):
* libguile/vm-engine.c (vm_run): Rework to use the simple vector API for
getting the current object table. Call the helper,
vm_make_boot_program, to make the boot program.
* libguile/vm-i-loader.c (load-program): Set the current module and the
meta in the object vector, which we pass to scm_c_make_program.
* libguile/vm-i-system.c (toplevel-ref, toplevel-set): Adapt to the new
program representation.
* module/language/glil/compile-objcode.scm (codegen): Clarify.
* module/language/glil/compile-objcode.scm (codegen): If the generated
objcode will have a meta or it has objects, prepend two cells to the
object table: one for the meta, and one for the module. This is a
placeholder for future work.
* module/language/ghil.scm (parse-ghil, unparse-ghil): Rework to make the
parse format correspond more closely with the object representation, so
that I only have to document it once in the manual. The salient change
is that no expression is self-quoting, and that variable references
should go through `(ref FOO)'. Rename `set!' to `set'.
* module/language/ghil/compile-glil.scm: Add a couple of compilers for
unquote and unquote-splicing, that just raise an error. This way I can
document unquote and unquote-splicing as normal ghil expressions,
except that it's the compiler that catches them if they're outside a
quasiquote.
(codegen): Adapt to change in <glil-asm>.
* module/language/ghil/spec.scm (parse): Fix parser typo bug.
* module/language/glil.scm (<glil-asm>): Remove useless <glil-vars>
structure, which also had a confusing name. Just put the nargs, nrest,
nlocs, and nexts in the <glil-asm> directly.
(parse-glil, unparse-glil): Serialize `asm' more straightforwardly.
* module/language/glil/compile-objcode.scm (<bytespec>): Remove
<glil-vars>, as with <glil-asm>.
(preprocess, make-meta, codegen, dump-object!): Adapt to change in
<glil-asm>.
