lto-section-in.c (lto_input_1_unsigned): Move to lto-streamer.h

lto-section-in.c (lto_input_1_unsigned): Move to lto-streamer.h

	* lto-section-in.c (lto_input_1_unsigned): Move to lto-streamer.h
	(lto_section_overrun): New.
	* lto-section-out.c (append_block): Rename to ...
	(lto_append_block): ... this one; export.
	(lto_output_1_stream): Move lto lto-streamer.h
	(lto_output_data_stream): Update.
	* lto-streamer.h (lto_section_overrun, lto_append_block): Declare.
	(lto_output_1_stream, lto_input_1_unsigned): Turn into inline
	functions.

From-SVN: r173247