Fix compare-debug bootstrap failure [PR113445]

Fix compare-debug bootstrap failure [PR113445]

... caused by scheduler fix for PR96388 and PR111554.

This patch adjusts decision sched-deps.cc:find_inc() to use
length of dependency lists sans any DEBUG_INSN instructions.

gcc/ChangeLog

2024-01-18  Maxim Kuvyrkov  <maxim.kuvyrkov@linaro.org>

	PR bootstrap/113445
	* haifa-sched.cc (dep_list_size): Make global.
	* sched-deps.cc (find_inc): Use instead of sd_lists_size().
	* sched-int.h (dep_list_size): Declare.

gcc/testsuite/ChangeLog

2024-01-18  Jakub Jelinek  <jakub@redhat.com>

	PR bootstrap/113445
	* gcc.dg/pr113445.c: New test.