Changes in doc/ref:

Changes in doc/ref:

* api.txt, data-rep.texi: Renamed the struct scm_cell to
scm_t_cell.

* data-rep.texi: Renamed scm_alloc_cell to scm_cell and
scm_alloc_double_cell to scm_double_cell.

Changes in libguile:

* gc.c (SCM_HEAP_SEG_SIZE, CELL_UP, CELL_DN, NEXT_DATA_CELL,
init_heap_seg, alloc_some_heap), gc.h (struct scm_cell, struct
scm_t_cell, SCM_CELLPTR, SCM_GC_CARD_SIZE,
SCM_GC_IN_CARD_HEADERP), tags.h (SCM_CELLP):  Renamed the struct
scm_cell and all its uses to scm_t_cell in accordance to Guile's
naming scheme for types.

* alist.c (scm_acons), convert.i.c (CTYPES2UVECT,
CTYPES2UVECT_OPTIONAL), coop-threads.c (scm_call_with_new_thread,
scm_spawn_thread), debug.c (scm_make_debugobj), environments.c
(scm_make_environment), eval.c (scm_closure), fports.c
(scm_fdes_to_port), gc.c (scm_deprecated_newcell,
scm_deprecated_newcell2), inline.h (scm_alloc_cell, scm_cell),
list.c (SCM_I_CONS), numbers.c (scm_i_mkbig), pairs.c (scm_cons),
ports.c (scm_void_port), procs.c (scm_c_make_subr, scm_makcclo),
smob.c (scm_make_smob), smob.h (SCM_NEWSMOB), strings.c
(scm_take_str, scm_allocate_string), strports.c (scm_mkstrport),
unif.c (scm_make_uve), variable.c (make_variable), vectors.c
(scm_c_make_vector), vports.c (scm_make_soft_port): Renamed
scm_alloc_cell to scm_cell.

* environments.c (core_environments_observe), gc.c
(scm_deprecated_newcell2), goops.c (wrap_init, scm_wrap_object),
inline.h (scm_alloc_double_cell, scm_double_cell), num2float.i.c
(FLOAT2NUM), numbers.c (scm_make_real), procs.c
(scm_make_procedure_with_setter), smob.h (SCM_NEWSMOB2,
SCM_NEWSMOB3), struct.c (scm_make_struct, scm_make_vtable_vtable),
symbols.c (scm_mem2symbol, scm_mem2uninterned_symbol), weaks.c
(allocate_weak_vector): Renamed scm_alloc_double_cell to
scm_double_cell.