Change some psymtab fields to bool

Change some psymtab fields to bool

This changes a few fields in partial_symtab to have type bool.

gdb/ChangeLog
2020-01-26  Tom Tromey  <tom@tromey.com>

	* xcoffread.c (xcoff_psymtab_to_symtab_1): Update.
	* psymtab.c (psym_print_stats): Update.
	* psympriv.h (struct partial_symtab) <readin,
	psymtabs_addrmap_supported, anonymous>: Now bool.
	* mdebugread.c (psymtab_to_symtab_1): Update.
	* dwarf2read.c (create_type_unit_group, create_partial_symtab)
	(build_type_psymtabs_reader, psymtab_to_symtab_1)
	(process_full_comp_unit, process_full_type_unit): Update.
	* dbxread.c (dbx_psymtab_to_symtab_1): Update.
	* ctfread.c (psymtab_to_symtab): Update.

Change-Id: I206761d083493589049ea0bc785ed6542339234d