[PR ipa/123383][v2] ICE speculative call sequence has speculative_id 256 out of range

[PR ipa/123383][v2] ICE speculative call sequence has speculative_id 256 out of range

Fix by checking lto_stmt_uid in get_next_speculative_id.

gcc/ChangeLog:

2026-01-07  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	PR ipa/123383
	* cgraph.cc (cgraph_edge::get_next_speculative_id): Check
	lto_stmt_uid in get_next_speculative_id.

gcc/testsuite/ChangeLog:

2026-01-07  Kugan Vivekanandarajah  <kvivekananda@nvidia.com>

	PR ipa/123383
	* g++.dg/pr123383.C: New test.
	co-authored-by: Andrew Pinski <andrew.pinski@oss.qualcomm.com>

Signed-off-by: Kugan Vivekanandarajah <kvivekananda@nvidia.com>