Mostly trivial enum fixes

This is a patch I extracted from Pedro's C++ branch.  It contains the
most trivial enum fixes, where an integer type/value was used instead
of the appropriate enum type/value.  It fixes many C++ errors, since
in C++ you can't mix integers and enums implicitely.

Regardless of the C++ conversion, I think this is a good cleanup to make
use of the appropriate enum types.

Regression-tested on native x86_64.

gdb/ChangeLog:

	* aarch64-linux-nat.c (aarch64_linux_can_use_hw_breakpoint): Use enum
	type or value instead of integer.
	(aarch64_linux_insert_watchpoint): Likewise.
	(aarch64_linux_remove_watchpoint): Likewise.
	* ada-lang.c (ada_op_print_tab): Likewise.
	* amd64-linux-tdep.c (amd64_canonicalize_syscall): Likewise.
	(amd64_linux_syscall_record_common): Likewise.
	* arch-utils.c (target_byte_order_user): Likewise.
	(default_byte_order): Likewise.
	* arm-linux-nat.c (arm_linux_can_use_hw_breakpoint): Likewise.
	(arm_linux_get_hwbp_type): Likewise.
	(arm_linux_hw_watchpoint_initialize): Likewise.
	(arm_linux_insert_watchpoint): Likewise.
	* arm-linux-tdep.c (arm_canonicalize_syscall): Likewise.
	(arm_linux_syscall_record): Likewise.
	* breakpoint.c (update_watchpoint): Likewise.
	(breakpoint_here_p): Likewise.
	(bpstat_print): Likewise.
	(enable_breakpoint_disp): Likewise.
	* c-lang.c (c_op_print_tab): Likewise.
	* cli/cli-decode.c (add_info_alias): Likewise.
	* d-lang.c (d_op_print_tab): Likewise.
	* eval.c (evaluate_subexp_standard): Likewise.
	* f-exp.y (dot_ops): Likewise.
	(f77_keywords): Likewise.
	* f-lang.c (f_op_print_tab): Likewise.
	* go-lang.c (go_op_print_tab): Likewise.
	* guile/scm-breakpoint.c (gdbscm_make_breakpoint): Likewise.
	* guile/scm-cmd.c (gdbscm_make_command): Likewise.
	* guile/scm-param.c (gdbscm_make_parameter): Likewise.
	* guile/scm-pretty-print.c (gdbscm_apply_val_pretty_printer): Likewise.
	* guile/scm-string.c (struct scm_to_stringn_data): Likewise.
	(struct scm_from_stringn_data): Likewise.
	* i386-linux-tdep.c (i386_canonicalize_syscall): Likewise.
	* ia64-linux-nat.c (ia64_linux_insert_watchpoint): Likewise.
	(ia64_linux_remove_watchpoint): Likewise.
	(ia64_linux_can_use_hw_breakpoint): Likewise.
	* infrun.c (print_stop_event): Likewise.
	* jv-lang.c (java_op_print_tab): Likewise.
	* linux-nat.c (linux_proc_xfer_partial): Likewise.
	* linux-nat.h (struct lwp_info): Likewise.
	* linux-thread-db.c (enable_thread_event): Likewise.
	* m2-lang.c (m2_op_print_tab): Likewise.
	* mi/mi-cmd-stack.c (mi_cmd_stack_list_locals): Likewise.
	(mi_cmd_stack_list_variables): Likewise.
	* mi/mi-main.c (mi_cmd_trace_frame_collected): Likewise.
	* mi/mi-out.c (mi_table_begin): Likewise.
	(mi_table_header): Likewise.
	* mips-linux-nat.c (mips_linux_can_use_hw_breakpoint): Likewise.
	(mips_linux_insert_watchpoint): Likewise.
	(mips_linux_remove_watchpoint): Likewise.
	* nat/mips-linux-watch.c (mips_linux_watch_type_to_irw): Likewise.
	* nat/mips-linux-watch.h (struct mips_watchpoint): Likewise.
	(mips_linux_watch_type_to_irw): Likewise.
	* nto-procfs.c (procfs_can_use_hw_breakpoint): Likewise.
	(procfs_insert_hw_watchpoint): Likewise.
	(procfs_remove_hw_watchpoint): Likewise.
	(procfs_hw_watchpoint): Likewise.
	(procfs_can_use_hw_breakpoint): Likewise.
	(procfs_remove_hw_watchpoint): Likewise.
	(procfs_insert_hw_watchpoint): Likewise.
	* p-lang.c (pascal_op_print_tab): Likewise.
	* ppc-linux-nat.c (ppc_linux_can_use_hw_breakpoint): Likewise.
	* ppc-linux-tdep.c (ppu2spu_unwind_register): Likewise.
	* ppc-sysv-tdep.c (get_decimal_float_return_value): Likewise.
	* procfs.c (procfs_can_use_hw_breakpoint): Likewise.
	(procfs_insert_watchpoint): Likewise.
	(procfs_remove_watchpoint): Likewise.
	* psymtab.c (recursively_search_psymtabs): Likewise.
	* remote-m32r-sdi.c (m32r_can_use_hw_watchpoint): Likewise.
	(m32r_insert_watchpoint): Likewise.
	* remote-mips.c (mips_can_use_watchpoint): Likewise.
	(mips_insert_watchpoint): Likewise.
	(mips_remove_watchpoint): Likewise.
	* remote.c (watchpoint_to_Z_packet): Likewise.
	(remote_insert_watchpoint): Likewise.
	(remote_remove_watchpoint): Likewise.
	(remote_check_watch_resources): Likewise.
	* s390-linux-nat.c (s390_insert_watchpoint): Likewise.
	(s390_remove_watchpoint): Likewise.
	(s390_can_use_hw_breakpoint): Likewise.
	* s390-linux-tdep.c (s390_gdbarch_init): Likewise.
	* spu-linux-nat.c (spu_can_use_hw_breakpoint): Likewise.
	* target.h (struct target_ops): Likewise.
	* tilegx-tdep.c (tilegx_analyze_prologue): Likewise.
	* ui-out.c (struct ui_out_hdr): Likewise.
	(append_header_to_list): Likewise.
	(get_next_header): Likewise.
	(verify_field): Likewise.
	(ui_out_begin): Likewise.
	(ui_out_field_int): Likewise.
	(ui_out_field_fmt_int): Likewise.
	(ui_out_field_skip): Likewise.
	(ui_out_field_string): Likewise.
	(ui_out_field_fmt): Likewise.
	* varobj.c (new_variable): Likewise.
	* x86-nat.c (x86_insert_watchpoint): Likewise.
	(x86_remove_watchpoint): Likewise.
	(x86_can_use_hw_breakpoint): Likewise.
	* xtensa-tdep.h (struct gdbarch_tdep): Likewise.
	* inflow.c (enum gdb_has_a_terminal_flag_enum): Add name to
	previously anonymous enumeration type..
	* linux-record.h (enum gdb_syscall): Add gdb_sys_no_syscall
	value.
	* target-debug.h (target_debug_print_enum_target_hw_bp_type): New.
	(target_debug_print_enum_bptype): New.
	* target-delegates.c: Regenerate.

gdb/target-delegates.c

@@ -401,20 +401,20 @@ debug_supports_stopped_by_hw_breakpoint (struct target_ops *self)
 }
 
 static int
-delegate_can_use_hw_breakpoint (struct target_ops *self, int arg1, int arg2, int arg3)
+delegate_can_use_hw_breakpoint (struct target_ops *self, enum bptype arg1, int arg2, int arg3)
 {
   self = self->beneath;
   return self->to_can_use_hw_breakpoint (self, arg1, arg2, arg3);
 }
 
 static int
-tdefault_can_use_hw_breakpoint (struct target_ops *self, int arg1, int arg2, int arg3)
+tdefault_can_use_hw_breakpoint (struct target_ops *self, enum bptype arg1, int arg2, int arg3)
 {
   return 0;
 }
 
 static int
-debug_can_use_hw_breakpoint (struct target_ops *self, int arg1, int arg2, int arg3)
+debug_can_use_hw_breakpoint (struct target_ops *self, enum bptype arg1, int arg2, int arg3)
 {
   int result;
   fprintf_unfiltered (gdb_stdlog, "-> %s->to_can_use_hw_breakpoint (...)\n", debug_target.to_shortname);
@@ -422,7 +422,7 @@ debug_can_use_hw_breakpoint (struct target_ops *self, int arg1, int arg2, int ar
   fprintf_unfiltered (gdb_stdlog, "<- %s->to_can_use_hw_breakpoint (", debug_target.to_shortname);
   target_debug_print_struct_target_ops_p (&debug_target);
   fputs_unfiltered (", ", gdb_stdlog);
-  target_debug_print_int (arg1);
+  target_debug_print_enum_bptype (arg1);
   fputs_unfiltered (", ", gdb_stdlog);
   target_debug_print_int (arg2);
   fputs_unfiltered (", ", gdb_stdlog);
@@ -523,20 +523,20 @@ debug_remove_hw_breakpoint (struct target_ops *self, struct gdbarch *arg1, struc
 }
 
 static int
-delegate_remove_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int arg3, struct expression *arg4)
+delegate_remove_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, enum target_hw_bp_type arg3, struct expression *arg4)
 {
   self = self->beneath;
   return self->to_remove_watchpoint (self, arg1, arg2, arg3, arg4);
 }
 
 static int
-tdefault_remove_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int arg3, struct expression *arg4)
+tdefault_remove_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, enum target_hw_bp_type arg3, struct expression *arg4)
 {
   return -1;
 }
 
 static int
-debug_remove_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int arg3, struct expression *arg4)
+debug_remove_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, enum target_hw_bp_type arg3, struct expression *arg4)
 {
   int result;
   fprintf_unfiltered (gdb_stdlog, "-> %s->to_remove_watchpoint (...)\n", debug_target.to_shortname);
@@ -548,7 +548,7 @@ debug_remove_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int
   fputs_unfiltered (", ", gdb_stdlog);
   target_debug_print_int (arg2);
   fputs_unfiltered (", ", gdb_stdlog);
-  target_debug_print_int (arg3);
+  target_debug_print_enum_target_hw_bp_type (arg3);
   fputs_unfiltered (", ", gdb_stdlog);
   target_debug_print_struct_expression_p (arg4);
   fputs_unfiltered (") = ", gdb_stdlog);
@@ -558,20 +558,20 @@ debug_remove_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int
 }
 
 static int
-delegate_insert_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int arg3, struct expression *arg4)
+delegate_insert_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, enum target_hw_bp_type arg3, struct expression *arg4)
 {
   self = self->beneath;
   return self->to_insert_watchpoint (self, arg1, arg2, arg3, arg4);
 }
 
 static int
-tdefault_insert_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int arg3, struct expression *arg4)
+tdefault_insert_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, enum target_hw_bp_type arg3, struct expression *arg4)
 {
   return -1;
 }
 
 static int
-debug_insert_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int arg3, struct expression *arg4)
+debug_insert_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, enum target_hw_bp_type arg3, struct expression *arg4)
 {
   int result;
   fprintf_unfiltered (gdb_stdlog, "-> %s->to_insert_watchpoint (...)\n", debug_target.to_shortname);
@@ -583,7 +583,7 @@ debug_insert_watchpoint (struct target_ops *self, CORE_ADDR arg1, int arg2, int
   fputs_unfiltered (", ", gdb_stdlog);
   target_debug_print_int (arg2);
   fputs_unfiltered (", ", gdb_stdlog);
-  target_debug_print_int (arg3);
+  target_debug_print_enum_target_hw_bp_type (arg3);
   fputs_unfiltered (", ", gdb_stdlog);
   target_debug_print_struct_expression_p (arg4);
   fputs_unfiltered (") = ", gdb_stdlog);