make calls to help_list use enumerator

Currently there are many calls to help_list that pass the constant -1
as the "class" value.  However, the parameter is declared as being of
type enum command_class, and uses of the constant violate this
abstraction.

This patch fixes the error everywhere it occurs in the gdb sources.

Tested by rebuilding.

2014-06-13  Tom Tromey  <tromey@redhat.com>

	* cp-support.c (maint_cplus_command): Pass all_commands, not -1,
	to help_list.
	* guile/guile.c (info_guile_command): Pass all_commands, not -1,
	to help_list.
	* tui/tui-win.c (tui_command): Pass all_commands, not -1, to
	help_list.
	* tui/tui-regs.c (tui_reg_command): Pass all_commands, not -1, to
	help_list.Pass all_commands, not -1, to help_list.
	* cli/cli-dump.c (dump_command, append_command)
	(srec_dump_command, ihex_dump_command, tekhex_dump_command)
	(binary_dump_command, binary_append_command): Pass all_commands,
	not -1, to help_list.
	* cli/cli-cmds.c (info_command, set_debug): Pass all_commands, not
	-1, to help_list.
	* valprint.c (set_print, set_print_raw): Pass all_commands, not
	-1, to help_list.
	* typeprint.c (set_print_type): Pass all_commands, not -1, to
	help_list.
	* top.c (set_history): Pass all_commands, not -1, to help_list.
	* target-descriptions.c (set_tdesc_cmd, unset_tdesc_cmd): Pass
	all_commands, not -1, to help_list.
	* symfile.c (overlay_command): Pass all_commands, not -1, to
	help_list.
	* spu-tdep.c (info_spu_command): Pass all_commands, not -1, to
	help_list.
	* serial.c (serial_set_cmd): Pass all_commands, not -1, to
	help_list.
	* ser-tcp.c (set_tcp_cmd, show_tcp_cmd): Pass all_commands, not
	-1, to help_list.
	* remote.c (remote_command, set_remote_cmd): Pass all_commands,
	not -1, to help_list.
	* ravenscar-thread.c (set_ravenscar_command): Pass all_commands,
	not -1, to help_list.
	* maint.c (maintenance_command, maintenance_info_command)
	(maintenance_print_command, maintenance_set_cmd): Pass
	all_commands, not -1, to help_list.
	* macrocmd.c (macro_command): Pass all_commands, not -1, to
	help_list.
	* language.c (set_check): Pass all_commands, not -1, to help_list.
	* infcmd.c (unset_command): Pass all_commands, not -1, to
	help_list.
	* frame.c (set_backtrace_cmd): Pass all_commands, not -1, to
	help_list.
	* dwarf2read.c (set_dwarf2_cmd): Pass all_commands, not -1, to
	help_list.
	* dcache.c (set_dcache_command): Pass all_commands, not -1, to
	help_list.
	* breakpoint.c (save_command): Pass all_commands, not -1, to
	help_list.
	* ada-lang.c (maint_set_ada_cmd, set_ada_command): Pass
	all_commands, not -1, to help_list.

1 files changed, 7 insertions, 4 deletions

diff --git a/gdb/maint.c b/gdb/maint.c
index 873c33c..30a9d3b 100644
--- a/gdb/maint.c
+++ b/gdb/maint.c
@@ -88,7 +88,7 @@ maintenance_command (char *args, int from_tty)
 {
   printf_unfiltered (_("\"maintenance\" must be followed by "
 		       "the name of a maintenance command.\n"));
-  help_list (maintenancelist, "maintenance ", -1, gdb_stdout);
+  help_list (maintenancelist, "maintenance ", all_commands, gdb_stdout);
 }
 
 #ifndef _WIN32
@@ -192,7 +192,8 @@ maintenance_info_command (char *arg, int from_tty)
 {
   printf_unfiltered (_("\"maintenance info\" must be followed "
 		       "by the name of an info command.\n"));
-  help_list (maintenanceinfolist, "maintenance info ", -1, gdb_stdout);
+  help_list (maintenanceinfolist, "maintenance info ", all_commands,
+	     gdb_stdout);
 }
 
 /* Mini tokenizing lexer for 'maint info sections' command.  */
@@ -439,7 +440,8 @@ maintenance_print_command (char *arg, int from_tty)
 {
   printf_unfiltered (_("\"maintenance print\" must be followed "
 		       "by the name of a print command.\n"));
-  help_list (maintenanceprintlist, "maintenance print ", -1, gdb_stdout);
+  help_list (maintenanceprintlist, "maintenance print ", all_commands,
+	     gdb_stdout);
 }
 
 /* The "maintenance translate-address" command converts a section and address
@@ -664,7 +666,8 @@ maintenance_set_cmd (char *args, int from_tty)
 {
   printf_unfiltered (_("\"maintenance set\" must be followed "
 		       "by the name of a set command.\n"));
-  help_list (maintenance_set_cmdlist, "maintenance set ", -1, gdb_stdout);
+  help_list (maintenance_set_cmdlist, "maintenance set ", all_commands,
+	     gdb_stdout);
 }
 
 static void