sel-sched-ir.c (sel_global_bb_info, [...]): Remove unnecessary = vNULL initialization of file scope vec.

	* sel-sched-ir.c (sel_global_bb_info, sel_region_bb_info,
	loop_nests, s_i_d, last_added_blocks): Remove unnecessary
	= vNULL initialization of file scope vec.
	* passes.c (pass_tab, enabled_pass_uid_range_tab,
	disabled_pass_uid_range_tab): Likewise.
	* haifa-sched.c (sched_luids, h_i_d): Likewise.
	* tree-chkp-opt.c (check_infos): Likewise.
	* sel-sched.c (vec_av_set, vec_temp_moveop_nops): Likewise.
c/
	* c-parser.c (incomplete_record_decls): Remove unnecessary
	= vNULL initialization of file scope vec.
cp/
	* constexpr.c (call_stack): Remove unnecessary
	= vNULL initialization of file scope vec.

From-SVN: r240444