Constify some linespec functions
This changes a few linespec functions to work on "const char *" and
then fixes up all the callers. This allows further constification
elsewhere.
gdb/ChangeLog
2017-09-27 Tom Tromey <tom@tromey.com>
* tracepoint.c (info_scope_command): Constify.
* python/python.c (gdbpy_decode_line): Constify.
* python/py-breakpoint.c (bppy_init): Constify.
* mi/mi-cmd-break.c (mi_cmd_break_insert_1): Constify.
* location.h: (new_linespec_location)
(string_to_event_location_basic, string_to_event_location):
Constify.
* location.c (new_linespec_location)
(string_to_event_location_basic, string_to_event_location):
Constify.
* linespec.h (decode_line_with_current_source)
(decode_line_with_last_displayed, linespec_lex_to_end): Constify.
* linespec.c (linespec_lex_to_end)
(decode_line_with_current_source)
(decode_line_with_last_displayed): Constify.
* guile/scm-breakpoint.c (gdbscm_register_breakpoint_x):
Constify.
* cli/cli-cmds.c (edit_command, list_command): Constify.
* breakpoint.h (until_break_command, watch_command_wrapper)
(awatch_command_wrapper, rwatch_command_wrapper)
(init_ada_exception_breakpoint): Constify.
* breakpoint.c (break_command_1, dprintf_command)
(break_range_command, watch_command_wrapper)
(rwatch_command_wrapper, awatch_command_wrapper)
(until_break_command, init_ada_exception_breakpoint)
(strace_marker_create_sals_from_location, trace_command)
(ftrace_command, strace_command, struct tracepoint): Constify.
* ax-gdb.c (agent_command_1): Constify.
* ada-lang.c (ada_exception_sal): Constify.
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