* lto-symtab.c (lto_cgraph_replace_node): Free decl_in_state.
	* cgraph.c (cgraph_release_function_body): Free decl_in_state.
	* lto-section-in.c (lto_free_function_in_decl_state): New function.
	(lto_free_function_in_decl_state_for_node): New function.

	* lto.c (read_cgraph_and_symbols): Remove ggc_collect;
	clear section node; add comment why we do not collect.

From-SVN: r202093