* cgraph.h: Flatten.  Remove all include files.
	(symbol_table::initialize): Move to cgraph.c.
	* cgraph.c: Adjust include files.
	(symbol_table::initialize): Relocate from cgraph.h.
	* gengtype.c (open_base_files): Adjust include files.
	* gccplugin.h: Add hash-map.h, is-a.h, plugin-api.h, and ipa-ref.h to
	included files.
	* ipa-inline.h: Remove all include files.
	* ipa-prop.h: Ditto.
	* ipa-reference.h: Ditto.
	* ipa-utils.h: Ditto:
	* lto-streamer.h: Remove cgraph.h from include list.
	* asan.c: Adjust include files.
	* auto-profile.c: Ditto.
	* bb-reorder.c: Ditto.
	* calls.c: Ditto.
	* cfgexpand.c: Ditto.
	* cgraphbuild.c: Ditto.
	* cgraphclones.c: Ditto.
	* cgraphunit.c: Ditto.
	* combine.c: Ditto.
	* coverage.c: Ditto.
	* data-streamer.c: Ditto.
	* data-streamer-in.c: Ditto.
	* data-streamer-out.c: Ditto.
	* dbxout.c: Ditto.
	* dwarf2out.c: Ditto.
	* except.c: Ditto.
	* expr.c: Ditto.
	* final.c: Ditto.
	* fold-const.c: Ditto.
	* ggc-page.c: Ditto.
	* gimple-fold.c: Ditto.
	* gimple-iterator.c: Ditto.
	* gimple-pretty-print.c: Ditto.
	* gimple-streamer-in.c: Ditto.
	* gimple-streamer-out.c: Ditto.
	* gimplify.c: Ditto.
	* ipa.c: Ditto.
	* ipa-comdats.c: Ditto.
	* ipa-cp.c: Ditto.
	* ipa-devirt.c: Ditto.
	* ipa-icf.c: Ditto.
	* ipa-icf-gimple.c: Ditto.
	* ipa-inline-analysis.c: Ditto.
	* ipa-inline.c: Ditto.
	* ipa-inline-transform.c: Ditto.
	* ipa-polymorphic-call.c: Ditto.
	* ipa-profile.c: Ditto.
	* ipa-prop.c: Ditto.
	* ipa-pure-const.c: Ditto.
	* ipa-ref.c: Ditto.
	* ipa-reference.c: Ditto.
	* ipa-split.c: Ditto.
	* ipa-utils.c: Ditto.
	* ipa-visibility.c: Ditto.
	* langhooks.c: Ditto.
	* lto-cgraph.c: Ditto.
	* lto-compress.c: Ditto.
	* lto-opts.c: Ditto.
	* lto-section-in.c: Ditto.
	* lto-section-out.c: Ditto.
	* lto-streamer.c: Ditto.
	* lto-streamer-in.c: Ditto.
	* lto-streamer-out.c: Ditto.
	* omp-low.c: Ditto.
	* opts-global.c: Ditto.
	* passes.c: Ditto.
	* predict.c: Ditto.
	* print-tree.c: Ditto.
	* profile.c: Ditto.
	* ree.c: Ditto.
	* stor-layout.c: Ditto.
	* symtab.c: Ditto.
	* toplev.c: Ditto.
	* trans-mem.c: Ditto.
	* tree.c: Ditto.
	* tree-cfg.c: Ditto.
	* tree-eh.c: Ditto.
	* tree-emutls.c: Ditto.
	* tree-inline.c: Ditto.
	* tree-nested.c: Ditto.
	* tree-pretty-print.c: Ditto.
	* tree-profile.c: Ditto.
	* tree-sra.c: Ditto.
	* tree-ssa-alias.c: Ditto.
	* tree-ssa-loop-ivcanon.c: Ditto.
	* tree-ssa-loop-ivopts.c: Ditto.
	* tree-ssa-pre.c: Ditto.
	* tree-ssa-structalias.c: Ditto.
	* tree-streamer.c: Ditto.
	* tree-streamer-in.c: Ditto.
	* tree-streamer-out.c: Ditto.
	* tree-switch-conversion.c: Ditto.
	* tree-tailcall.c: Ditto.
	* tree-vect-data-refs.c: Ditto.
	* tree-vectorizer.c: Ditto.
	* tree-vect-stmts.c: Ditto.
	* tsan.c: Ditto.
	* ubsan.c: Ditto.
	* value-prof.c: Ditto.
	* varasm.c: Ditto.
	* varpool.c: Ditto.
	* config/arm/arm.c: Ditto.
	* config/bfin/bfin.c: Ditto.
	* config/c6x/c6x.c: Ditto.
	* config/cris/cris.c: Ditto.
	* config/darwin.c: Ditto.
	* config/darwin-c.c: Ditto.
	* config/i386/i386.c: Ditto.
	* config/i386/winnt.c: Ditto.
	* config/microblaze/microblaze.c: Ditto.
	* config/mips/mips.c: Ditto.
	* config/rs6000/rs6000.c: Ditto.
	* config/rx/rx.c: Ditto.

	* ada/gcc-interface/trans.c: Adjust include files.
	* ada/gcc-interface/utils.c: Ditto.

	* c/c-decl.c: Adjust include files.
	* c/c-parser.c: Ditto.

	* c-family/c-common.c: Adjust include files.
	* c-family/c-gimplify.c: Ditto.
	* c-family/cilk.c: Ditto.
	* c-family/c-pragma.c: Ditto.
	* c-family/c-ubsan.c: Ditto.

	* cp/call.c: Adjust include files.
	* cp/class.c: Ditto.
	* cp/decl2.c: Ditto.
	* cp/decl.c: Ditto.
	* cp/lambda.c: Ditto.
	* cp/mangle.c: Ditto.
	* cp/method.c: Ditto.
	* cp/optimize.c: Ditto.
	* cp/parser.c: Ditto.
	* cp/semantics.c: Ditto.
	* cp/tree.c: Ditto.
	* cp/vtable-class-hierarchy.c: Ditto.

	* fortran/f95-lang.c: Adjust include files.
	* fortran/trans-decl.c: Ditto.

	* go/go-gcc.cc: Adjust include files.

	* java/class.c: Adjust include files.
	* java/decl.c: Ditto.
	* java/jcf-parse.c: Ditto.
	* java/resource.c: Ditto.

	* lto/lto.c: Adjust include files.
	* lto/lto-lang.c: Ditto.
	* lto/lto-object.c: Ditto.
	* lto/lto-partition.c: Ditto.
	* lto/lto-symtab.c: Ditto.

	* objc/objc-act.c: Adjust include files.

From-SVN: r216805