Merge pull request #81755 from ktoso/wip-correct-signing-num

[Concurrency] Correct the signing of priority escalation handler

Author: ktoso

include/swift/ABI/MetadataValues.h

@@ -1745,7 +1745,7 @@ namespace SpecialPointerAuthDiscriminators {
   const uint16_t AsyncContextParent = 0xbda2; // = 48546
   const uint16_t AsyncContextResume = 0xd707; // = 55047
   const uint16_t AsyncContextYield = 0xe207; // = 57863
-  const uint16_t CancellationNotificationFunction = 0x2E3F; // = 11839 (TaskPriority, TaskPriority) -> Void
+  const uint16_t CancellationNotificationFunction = 0xf73; // = 3955 (TaskPriority, TaskPriority) -> Void
   const uint16_t EscalationNotificationFunction = 0x7861; // = 30817
   const uint16_t AsyncThinNullaryFunction = 0x0f08; // = 3848
   const uint16_t AsyncFutureFunction = 0x720f; // = 29199

stdlib/public/Concurrency/Task.cpp

@@ -1817,7 +1817,7 @@ swift_task_addPriorityEscalationHandlerImpl(
     void *context) {
   void *allocation =
       swift_task_alloc(sizeof(EscalationNotificationStatusRecord));
-  auto unsigned_handler = swift_auth_code(handler, 11839);
+  auto unsigned_handler = swift_auth_code(handler, 3955);
   auto *record = ::new (allocation)
       EscalationNotificationStatusRecord(unsigned_handler, context);