* libguile/array-handle.c (scm_array_handle_pos_1):
(scm_array_handle_pos_2): New functions.
* libguile/generalized-arrays.c (scm_c_array_ref_1, scm_c_array_ref_2):
(scm_c_array_set_1_x, scm_c_array_set_2_x): New functions.
(scm_i_array_ref, scm_i_array_set_x): New subr bindings for array-ref
and array-set! that avoid consing for arrays of rank 1 or 2.
* test-suite/tests/arrays.test ("array-set!"): Fix expected exception
for wrong number of indices.
* libguile/generalized-arrays.c (scm_array_p_2): New, formerly
`scm_array_p ()'.
(scm_array_p): Add second argument, for compatibility with 1.8 and
earlier and to match what the doc says and what `SCM_VALIDATE_ARRAY'
expects.
* libguile/generalized-arrays.h (scm_array_p_2): New.
(scm_array_p): Adjust.
* libguile/arrays.h:
* libguile/arrays.c:
* libguile/generalized-arrays.h:
* libguile/generalized-arrays.c: Move some generic functionality out of
arrays.c to a new file.
* libguile/array-map.c:
* libguile/deprecated.c:
* libguile/init.c: Update includers.
