Convert scm_gc_malloc* calls to scm_allocate*

* libguile/arrays.c:
* libguile/bitvectors.c:
* libguile/bytevectors.c:
* libguile/chooks.c:
* libguile/continuations.c:
* libguile/control.c:
* libguile/dynstack.c:
* libguile/ephemerons.c:
* libguile/filesys.c:
* libguile/foreign.c:
* libguile/fports.c:
* libguile/frames.c:
* libguile/gsubr.c:
* libguile/hashtab.c:
* libguile/i18n.c:
* libguile/integers.c:
* libguile/intrinsics.c:
* libguile/load.c:
* libguile/loader.c:
* libguile/macros.c:
* libguile/numbers.c:
* libguile/options.c:
* libguile/ports.c:
* libguile/programs.h:
* libguile/random.c:
* libguile/read.c:
* libguile/regex-posix.c:
* libguile/smob.c:
* libguile/srfi-14.c:
* libguile/strings.c:
* libguile/struct.c:
* libguile/threads.c:
* libguile/threads.h:
* libguile/values.c:
* libguile/vm.c: Convert all calls to scm_gc_malloc_pointerless to
scm_allocate_pointerless.  Convert scm_gc_malloc to either
scm_allocate_tagged or scm_allocate_sloppy, depending on whether the
value can be precisely traced or not.

libguile/loader.c

@@ -698,9 +698,9 @@ register_elf (char *data, size_t len, char *frame_maps)
 
         prev = mapped_elf_images;
         mapped_elf_images =
-          scm_gc_malloc_pointerless (sizeof (*mapped_elf_images)
-                                     * mapped_elf_images_allocated,
-                                     "mapped elf images");
+          scm_allocate_pointerless (SCM_I_CURRENT_THREAD,
+                                    sizeof (*mapped_elf_images)
+                                     * mapped_elf_images_allocated);
 
         for (n = 0; n < mapped_elf_images_count; n++)
           {