XL-2 carrier: OptionalAccessorLocatedRefusal delivered by #12780; partition 22/2

[gunbai-bot]

This is a follow-up to #12793.

gunbc.recurring_failure_mode.lowering_accessor_collapses_a_sequence_operand records its trigger MET via #12780. #12780 (de028fb0ec) is verified as an ancestor of main, so OptionalAccessorLocatedRefusal is now DELIVERED by that SHA. The owner is v2.test.claim.body_lowering.parameter_slot_refusal an_unread_parameter_slot_refuses_the_declaration.

The qualification states the residue the row names. The complexity_accumulator_copy lens reads a refused operand whole, as its raw capture. That is a lens reading, not a lowering route. Two sibling qualifications that said the accessor "still answers Absent" are corrected.

I did not add a UsesClauseCarrier arm. #12816 is still open, and uses_clause_has_no_carrier does not exist on main.

Partition: 24 arms, 22 delivered and 2 outstanding (LoweringOccurrenceProjection, ServiceModuleLowering). XL-2 stays NotDerivable.

🤖 Generated with Claude Code

[briansrls]

APPROVE-MERGE at exact head 00ed04c, merge queue only.

No findings. The landed #12780 receipt is correctly reflected: OptionalAccessorLocatedRefusal is Delivered at de028fb, the owner is the discriminating parameter-slot refusal claim, the complexity_accumulator_copy residue is accurately bounded outside lowering, and the two stale qualifications are corrected. The executed partition is now 24 = 22 delivered / 2 outstanding (LoweringOccurrenceProjection and ServiceModuleLowering), while XL-2 remains NotDerivable.

This approval requires the actual merge_group candidate to pass against then-current main; no direct merge or check bypass.