* common.opt (fira-verbose): Use Var.
	(fpcc-struct-return): Use Init instead of VarExists.
	* defaults.h (DEFAULT_PCC_STRUCT_RETURN): Move definition from
	toplev.c.
	* flags.h (flag_signed_char, flag_short_enums,
	flag_pcc_struct_return, flag_ira_verbose,
	flag_detailed_statistics, flag_remove_unreachable_functions):
	Remove.
	* toplev.c (flag_detailed_statistics, flag_signed_char,
	flag_short_enums, flag_pcc_struct_return, flag_ira_verbose):
	Remove.
	(DEFAULT_PCC_STRUCT_RETURN): Move definition to defaults.h.
	* toplev.h (flag_crossjumping, flag_if_conversion,
	flag_if_conversion2, flag_keep_static_consts, flag_peel_loops,
	flag_rerun_cse_after_loop, flag_thread_jumps, flag_tracer,
	flag_unroll_loops, flag_unroll_all_loops, flag_unswitch_loops,
	flag_cprop_registers, time_report, flag_ira_loop_pressure,
	flag_ira_coalesce, flag_ira_move_spills,
	flag_ira_share_save_slots, flag_ira_share_spill_slots): Remove.

c-family:
	* c-common.c (flag_preprocess_only, flag_undef, flag_no_builtin,
	flag_no_nonansi_builtin, flag_short_double, flag_short_wchar,
	flag_lax_vector_conversions, flag_ms_extensions, flag_no_asm,
	flag_signed_bitfields, warn_strict_null_sentinel,
	flag_nil_receivers, flag_zero_link, flag_replace_objc_classes,
	flag_gen_declaration, flag_no_gnu_keywords,
	flag_implement_inlines, flag_implicit_templates,
	flag_implicit_inline_templates, flag_optional_diags,
	flag_elide_constructors, flag_default_inline, flag_rtti,
	flag_conserve_space, flag_access_control, flag_check_new,
	flag_new_for_scope, flag_weak, flag_working_directory,
	flag_use_cxa_atexit, flag_use_cxa_get_exception_ptr,
	flag_enforce_eh_specs, flag_threadsafe_statics,
	flag_pretty_templates): Remove.
	* c-common.h (flag_preprocess_only, flag_nil_receivers,
	flag_objc_exceptions, flag_objc_sjlj_exceptions, flag_zero_link,
	flag_replace_objc_classes, flag_undef, flag_no_builtin,
	flag_no_nonansi_builtin, flag_short_double, flag_short_wchar,
	flag_lax_vector_conversions, flag_ms_extensions, flag_no_asm,
	flag_const_strings, flag_signed_bitfields, flag_gen_declaration,
	flag_no_gnu_keywords, flag_implement_inlines,
	flag_implicit_templates, flag_implicit_inline_templates,
	flag_optional_diags, flag_elide_constructors, flag_default_inline,
	flag_rtti, flag_conserve_space, flag_access_control,
	flag_check_new, flag_new_for_scope, flag_weak,
	flag_working_directory, flag_use_cxa_atexit,
	flag_use_cxa_get_exception_ptr, flag_enforce_eh_specs,
	flag_threadsafe_statics, flag_pretty_templates,
	warn_strict_null_sentinel): Remove.
	* c.opt (E, Wstrict-null-sentinel, faccess-control, fasm,
	fbuiltin, fcheck-new, fconserve-space, felide-constructors,
	fenforce-eh-specs, ffor-scope, fgnu-keywords, fimplement-inlines,
	fimplicit-inline-templates, fimplicit-templates,
	flax-vector-conversions, fms-extensions, fnil-receivers,
	fnonansi-builtins, fpretty-templates, freplace-objc-classes,
	frtti, fshort-double, fshort-enums, fshort-wchar,
	fsigned-bitfields, fsigned-char, fstats, fthreadsafe-statics,
	funsigned-bitfields, funsigned-char, fuse-cxa-atexit,
	fuse-cxa-get-exception-ptr, fweak, fworking-directory, fzero-link,
	gen-decls, undef): Use Var.
	(fdefault-inline, foptional-diags): Document as doing nothing.
	* c-opts.c (c_common_handle_option): Remove cases for options now
	using Var.  Mark ignored options as such.

fortran:
	* lang.opt (fshort-enums): Define using Var and VarExists.
	* options.c (gfc_handle_option): Don't set flag_short_enums here.

lto:
	* lto-lang.c (flag_no_builtin, flag_no_nonansi_builtin): Remove.
	(lto_handle_option): Don't set flag_signed_char here.

From-SVN: r160384