* attribs.c (decl_attributes): Use %qE for identifiers in
	diagnostics.
	* cgraphunit.c (verify_cgraph_node): Translate function names to
	locale character set in diagnostics.
	* coverage.c (get_coverage_counts): Use %qE for identifiers in
	diagnostics.
	* doc/invoke.texi (-finstrument-functions-exclude-function-list):
	Document that functions are named in UTF-8.
	* expr.c (expand_expr_real_1): Translate function names to locale
	character set in diagnostics.
	* gimplify.c (omp_notice_variable, omp_is_private,
	gimplify_scan_omp_clauses): Use %qE for identifiers in
	diagnostics.
	* langhooks.c (lhd_print_error_function): Translate function names
	to locale character set.
	* langhooks.h (decl_printable_name): Document that return value is
	in internal character set.
	* stmt.c: Include pretty-print.h
	(tree_conflicts_with_clobbers_p): Use %qE for identifiers in
	diagnostics.
	(resolve_operand_name_1): Translate named operand name to locale
	character set.
	* stor-layout.c (finalize_record_size): Use %qE for identifiers in
	diagnostics.
	* toplev.c (announce_function): Translate function names to locale
	character set.
	(warn_deprecated_use): Use %qE for identifiers in diagnostics.
	(default_tree_printer): Use pp_identifier or translate identifiers
	to locale character set.  Mark "<anonymous>" for translation.
	* tree-mudflap.c (mx_register_decls, mudflap_finish_file): Use %qE
	for identifiers in diagnostics.
	* tree.c (handle_dll_attribute): Use %qE for identifiers in
	diagnostics.
	* varasm.c (output_constructor): Use %qE for identifiers in
	diagnostics.

testsuite:
	* gcc.dg/ucnid-11.c, gcc.dg/ucnid-12.c, gcc.dg/ucnid-13.c: New
	tests.

From-SVN: r147111