re PR lto/54790 (Missing optimization with LTO)

re PR lto/54790 (Missing optimization with LTO)

	PR lto/54790
	* lto.c (resolution_map): New static var.
	(register_resolution): New function.
	(lto_register_var_decl_in_symtab): Use it.
	(read_cgraph_and_symbols): Copy resolutions into the symtab.
	* lto-streamer.h (lto_symtab_register_decl, lto_symtab_get_resolution,
	lto_mark_nothrow_fndecl, lto_fixup_nothrow_decls): Remove.
	* lto-symtab.c (lto_symtab_register_decl): Remove.

From-SVN: r192159