diagnostics: add ctors to text_info; add m_ prefixes to fields

diagnostics: add ctors to text_info; add m_ prefixes to fields

No functional change intended.

gcc/ada/ChangeLog:
	* gcc-interface/misc.cc: Use text_info ctor.

gcc/analyzer/ChangeLog:
	* analyzer-logging.cc (logger::log_va_partial): Use text_info
	ctor.
	* analyzer.cc (make_label_text): Likewise.
	(make_label_text_n): Likewise.
	* pending-diagnostic.cc (evdesc::event_desc::formatted_print):
	Likewise.

gcc/c/ChangeLog:
	* c-objc-common.cc (c_tree_printer): Update for "m_" prefixes to
	text_info fields.

gcc/cp/ChangeLog:
	* error.cc: Update for "m_" prefixes to text_info fields.

gcc/d/ChangeLog:
	* d-diagnostic.cc (d_diagnostic_report_diagnostic): Use text_info
	ctor.

gcc/ChangeLog:
	* diagnostic.cc (diagnostic_set_info_translated): Update for "m_"
	prefixes to text_info fields.
	(diagnostic_report_diagnostic): Likewise.
	(verbatim): Use text_info ctor.
	(simple_diagnostic_path::add_event): Likewise.
	(simple_diagnostic_path::add_thread_event): Likewise.
	* dumpfile.cc (dump_pretty_printer::decode_format): Update for
	"m_" prefixes to text_info fields.
	(dump_context::dump_printf_va): Use text_info ctor.
	* graphviz.cc (graphviz_out::graphviz_out): Use text_info ctor.
	(graphviz_out::print): Likewise.
	* opt-problem.cc (opt_problem::opt_problem): Likewise.
	* pretty-print.cc (pp_format): Update for "m_" prefixes to
	text_info fields.
	(pp_printf): Use text_info ctor.
	(pp_verbatim): Likewise.
	(assert_pp_format_va): Likewise.
	* pretty-print.h (struct text_info): Add ctors.  Add "m_" prefix
	to all fields.
	* text-art/styled-string.cc (styled_string::from_fmt_va): Use
	text_info ctor.
	* tree-diagnostic.cc (default_tree_printer): Update for "m_"
	prefixes to text_info fields.
	* tree-pretty-print.h (pp_ti_abstract_origin): Likewise.

gcc/fortran/ChangeLog:
	* error.cc (gfc_format_decoder): Update for "m_" prefixes to
	text_info fields.

Signed-off-by: David Malcolm <dmalcolm@redhat.com>