gcov.c (print_usage): Handle new option.

2013-06-19    <singhai@google.com>

	* gcov.c (print_usage): Handle new option.
	(process_args): Ditto.
	(get_gcov_intermediate_filename): New function.
	(output_intermediate_file): New function.
	(output_gcov_file): New function
	(generate_results): Handle new option.
	(release_function): Relase demangled name.
	(read_graph_file): Handle demangled name.
	(output_lines): Ditto.
	* doc/gcov.texi: Document gcov intermediate format.

testsuite/ChangeLog:

	* g++.dg/gcov/gcov-8.C: New testcase.
	* lib/gcov.exp: Handle intermediate format.

From-SVN: r200232