* gcov-io.h (struct gcov_info): Replace trailing array with
	pointer to array.
	* profile.c (branch_prob): Only call renamed
	coverage_begin_function once.
	* coverage.h (coverage_begin_output): Rename to ...
	(coverage_begin_function): ... here.
	* coverage.c (struct function_list): Rename to ...
	(struct coverage_data): ... this.  Update all uses.
	(gcov_info_var, gcov_fn_info_type, gcov_fn_info_ptr_type): New
	globals.
	(bbg_file_opened, bbg_function_announced): Remove.
	(get_coverage_counts): Adjust message.
	(coverage_begin_ouput): Rename to ...
	(coverage_begin_function): ... here.  Move file opening to
	coverage_init.  Adjust for being called only once.
	(coverage_end_function): Remove bbg file and inhibit further
	output here on error.
	(build_info_type): Adjust for change to pointer to array.
	(build_info): Receive array of function pointers and adjust.
	(create_coverage): Break into ...
	(coverage_obj_init, coverage_obj_fn, coverage_obj_finish):
	... these, and adjust.
	(coverage_init): Open the notes file here.  Tidy.
	(coverage_finish): Call coverage_obj_init etc.

From-SVN: r181994