Remove unused functions and fields.

Remove unused functions and fields.

2018-09-25  Martin Liska  <mliska@suse.cz>

	* alias.c (set_dest_equal_p): Remove unused function.
	* config/i386/i386.c (def_builtin_pure2): Likewise.
	* diagnostic-show-locus.c (class layout): Remove
	unused field.
	(layout::layout): Likewise here.
	* dump-context.h (class temp_dump_context): Likewise.
	* dwarf2out.c (add_AT_fde_ref): Remove unused function.
	(add_AT_loclistsptr): Likewise.
	(add_AT_offset): Likewise.
	(get_AT_hi_pc): Likewise.
	(is_comdat_die): Likewise.
	(type_is_enum): Likewise.
	(ceiling): Likewise.
	(add_AT_vms_delta): Likewise.
	(is_class_die): Likewise.
	* edit-context.c (class line_event): Remove unused field.
	* graphite-sese-to-poly.c (tree_int_to_gmp): Remove
	unused function.
	* ipa-cp.c (ipa_get_vr_lat): Likewise.
	* lra-constraints.c (ok_for_index_p_nonstrict): Likewise.
	(ok_for_base_p_nonstrict): Likewise.
	* tree-chrec.c (is_not_constant_evolution): Likewise.
	(chrec_fold_poly_cst): Likewise.
	* tree-if-conv.c (has_pred_critical_p): Likewise.
	* tree-ssa-coalesce.c (print_exprs): Likewise.
	* tree-ssa-pre.c (bitmap_set_contains_expr): Likewise.
	* tree-ssa-uninit.c (is_and_or_or_p): Likewise.
	* tree-vrp.c (value_ranges_intersect_p): Likewise.
	(value_range_nonnegative_p): Likewise.
2018-09-25  Martin Liska  <mliska@suse.cz>

	* name-lookup.c (namespace_scope_ht_size): Remove
	unused function.
	* parser.c (cp_lexer_next_token_is_not_keyword): Likewise.
2018-09-25  Martin Liska  <mliska@suse.cz>

	* trans.c (remove_suffix): Remove
	unused function.
2018-09-25  Martin Liska  <mliska@suse.cz>

	* gofrontend/escape.cc (Gogo::analyze_escape): Remove
	usage of a parameter.
	(Gogo::assign_connectivity): Likewise.
	(class Escape_analysis_tag): Likewise.
	(Gogo::tag_function): Likewise.
	* gofrontend/expressions.cc (Call_expression::do_type): Likewise.
	* gofrontend/gogo.h (class Gogo): Likewise.
	* gofrontend/types.cc (class Call_multiple_result_type): Likewise.
	(Type::make_call_multiple_result_type): Likewise.
	* gofrontend/types.h (class Type): Likewise.
	* gofrontend/wb.cc (class Check_escape): Likewise.
	(Gogo::add_write_barriers): Likewise.

From-SVN: r264561