* gdbtypes.c (alloc_type): No longer support NULL objfile.
(init_type): Likewise.
(alloc_type_arch): New function.
(alloc_type_copy): New function.
(get_type_arch): New function.
(smash_type): Preserve type ownership information.
(make_pointer_type, make_reference_type, make_function_type,
smash_to_memberptr_type, smash_to_method_type): No longer
preserve OBJFILE across smash_type calls.
(make_pointer_type, make_reference_type, make_function_type,
lookup_memberptr_type, lookup_methodptr_type, allocate_stub_method,
create_range_type, create_array_type, create_set_type, copy_type):
Use alloc_type_copy when allocating types.
(check_typedef): Use alloc_type_arch.
(copy_type_recursive): Likewise. Preserve type ownership data
after copying type.
(recursive_dump_type): Dump type ownership data.
(alloc_type_instance): Update type ownership check.
(copy_type, copy_type_recursive): Likewise.
(arch_type): New function.
(arch_integer_type): Likewise.
(arch_character_type): Likewise.
(arch_boolean_type): Likewise.
(init_float_type): Remove, replace by ...
(arch_float_type): ... this.
(init_complex_type): Remove, replace by ...
(arch_complex_type): ... this.
(init_flags_type): Remove, replace by ...
(arch_flags_type): ... this.
(append_flags_type_flag): Move down.
(init_composite_type): Remove, replace by ...
(arch_composite_type): ... this.
(append_composite_type_field_aligned,
append_composite_type_field): Move down.