* stabsread.c (rs6000_builtin_type): Move function from

* stabsread.c (rs6000_builtin_type):  Move function from
xcoffread.c:builtin_type.
* xcoffread.c (builtin_type):  Move to stabsread.  Remove
IBM6000_HOST dependency.  Move misplaced comments.
(various):  Change printf's to complaints.
(patch_block_stabs, process_xcoff_symbol case C_DECL):  Add
objfile argument to read_type calls under #if 0.
(process_xcoff_symbol case C_RSYM):  Fix typo in #ifdef.
* xcoffexec.c (map_vmap):  Don't allocate an objfile for the exec_file.
* Makefile.in:  xcoffread.o is not built by default.
* config/rs6000.mh (NATDEPFILES): xcoffread.o is native only.
* doc/gdbint.texinfo:  Eliminate IBM6000_HOST, document
IBM6000_TARGET.