* c-common.c (const_strip_array_types): New.
	* c-common.h (lang_missing_noreturn_ok_p): Delete.
	(const_strip_array_types): New.
	* c-objc-common.c (c_disregard_inline_limits,
	c_warn_unused_global_decl): Constify.
	* c-tree.h (c_disregard_inline_limits, c_warn_unused_global_decl,
	c_vla_type_p, c_incomplete_type_error): Likewise.
	* c-typeck.c (c_incomplete_type_error, c_vla_type_p): Likewise.
	* hooks.c (hook_bool_const_tree_false): New.
	* hooks.h (hook_bool_const_tree_false): Likewise.
	* langhooks-def.h (lhd_warn_unused_global_decl,
	lhd_incomplete_type_error, lhd_expr_size,
	lhd_tree_inlining_disregard_inline_limits,
	lhd_tree_inlining_auto_var_in_fn_p, lhd_tree_dump_type_quals,
	LANG_HOOKS_GENERIC_TYPE_P, LANG_HOOKS_TYPE_MAX_SIZE): Constify.
	* langhooks.c (lhd_warn_unused_global_decl,
	lhd_incomplete_type_error,
	lhd_tree_inlining_disregard_inline_limits,
	lhd_tree_inlining_auto_var_in_fn_p, lhd_tree_dump_type_quals,
	lhd_expr_size): Likewise.
	* langhooks.h (lang_hooks_for_tree_inlining,
	lang_hooks_for_tree_dump, lang_hooks_for_types,
	lang_hooks_for_decls, lang_hooks): Likewise.
	* pointer-set.c (pointer_set_t, pointer_set_create,
	pointer_set_contains, insert_aux, pointer_set_insert,
	pointer_set_traverse, pointer_map_t, pointer_map_create,
	pointer_map_contains, pointer_map_insert, pointer_map_traverse):
	Likewise.
	* pointer-set.h (pointer_set_contains, pointer_set_insert,
	pointer_set_traverse, pointer_map_contains, pointer_map_insert,
	pointer_map_traverse): Likewise.
	* predict.c (assert_is_empty): Likewise.
	* tree-affine.c (free_name_expansion): Likewise.
	* tree-cfg.c (edge_to_cases_cleanup): Likewise.
	* tree.c (size_in_bytes, max_int_size_in_bytes): Likewise.
	* tree.h (size_in_bytes, max_int_size_in_bytes): Likewise.
	
ada:
	* misc.c (gnat_type_max_size): Constify.

cp:
	* cp-objcp-common.c (cxx_warn_unused_global_decl, cp_expr_size):
	Constify.
	* cp-tree.h (local_variable_p, nonstatic_local_decl_p,
	class_tmpl_impl_spec_p, cp_auto_var_in_fn_p, cp_type_quals,
	cxx_incomplete_type_diagnostic, cxx_incomplete_type_error,
	cxx_warn_unused_global_decl, cp_expr_size): Likewise.
	* decl.c (local_variable_p, nonstatic_local_decl_p): Likewise.
	* tree.c (class_tmpl_impl_spec_p, cp_auto_var_in_fn_p): Likewise.
	* typeck.c (cp_type_quals): Likewise.
	* typeck2.c (cxx_incomplete_type_diagnostic,
	cxx_incomplete_type_error): Likewise.

From-SVN: r127560