* gimple-pretty-print.h: Don't include pretty-print.h.
	* tree-streamer.h: Don't include lto-streamer.h.
	* gimple-streamer.h: Include tree-streamer.h rather than lto-streamer.h.
	* gimple-streamer-in.c: Remove redundant includes.
	* gimple-streamer-out.c: Likewise.
	* ipa-devirt.c: Likewise.
	* ipa-icf.c: Likewise.
	* ipa-inline-analysis.c: Likewise.
	* ipa-polymorphic-call.c: Likewise.
	* ipa-profile.c: Likewise.
	* ipa-prop.c: Likewise.
	* ipa-pure-const.c: Likewise.
	* lto-cgraph.c: Likewise.
	* lto-streamer-in.c: Likewise.
	* lto-streamer-out.c: Likewise.
	* lto-streamer.c: Likewise.
	* tree-streamer-in.c: Likewise.
	* tree-streamer-out.c: Likewise.
	* tree-streamer.c: Likewise.
	* lto/lto.c: Remove redundant includes.

From-SVN: r225847