* system.h (fancy_abort): Annotate by ATTRIBUTE_COLD.
	* rtl.h (rtl_check_failed_bounds, rtl_check_failed_type1,
	rtl_check_failed_type2, rtl_check_failed_code1,
	rtl_check_failed_code2, rtl_check_failed_code_mode,
	rtl_check_failed_block_symbol, cwi_check_failed_bounds,
	rtvec_check_failed_bounds, rtl_check_failed_flag,
	_fatal_insn_not_found, _fatal_insn): Likewise.
	* tree.h (tree_contains_struct_check_failed,
	tree_check_failed, tree_not_check_failed,
	tree_class_check_failed, tree_range_check_failed,
	tree_not_class_check_failed, tree_int_cst_elt_check_failed,
	tree_vec_elt_check_failed, phi_node_elt_check_failed,
	tree_operand_check_failed, omp_clause_check_failed,
	omp_clause_operand_check_failed, omp_clause_range_check_failed):
	Likewise.

	* cp-tree.h (lang_check_failed): Annotate by ATTRIBUTE_COLD.

From-SVN: r249022