disable bad abi checker warning

Author: ktoso

stdlib/public/Concurrency/Executor.swift

@@ -16,8 +16,10 @@ import Swift
 @available(SwiftStdlib 5.1, *)
 public protocol Executor: AnyObject, Sendable {
 
-  @available(*, deprecated, message: "Implement 'enqueue(_: __owned Job)' instead")
-  @available(SwiftStdlib 5.1, *)
+  @available(macOS, introduced: 10.15, deprecated: 9999, message: "Implement 'enqueue(_: __owned Job)' instead")
+  @available(iOS, introduced: 13.0, deprecated: 9999, message: "Implement 'enqueue(_: __owned Job)' instead")
+  @available(watchOS, introduced: 6.0, deprecated: 9999, message: "Implement 'enqueue(_: __owned Job)' instead")
+  @available(tvOS, introduced: 13.0, deprecated: 9999, message: "Implement 'enqueue(_: __owned Job)' instead")
   func enqueue(_ job: UnownedJob)
 
   @available(SwiftStdlib 5.9, *)
@@ -32,7 +34,10 @@ public protocol SerialExecutor: Executor {
   // avoid drilling down to the base conformance just for the basic
   // work-scheduling operation.
   @_nonoverride
-  @available(*, deprecated, message: "Implement 'enqueue_: __owned Job) instead")
+  @available(macOS, introduced: 10.15, deprecated: 9999, message: "Implement 'enqueue(_: __owned Job)' instead")
+  @available(iOS, introduced: 13.0, deprecated: 9999, message: "Implement 'enqueue(_: __owned Job)' instead")
+  @available(watchOS, introduced: 6.0, deprecated: 9999, message: "Implement 'enqueue(_: __owned Job)' instead")
+  @available(tvOS, introduced: 13.0, deprecated: 9999, message: "Implement 'enqueue(_: __owned Job)' instead")
   func enqueue(_ job: UnownedJob)
 
   // This requirement is repeated here as a non-override so that we

test/api-digester/stability-concurrency-abi.test

@@ -63,8 +63,13 @@ Protocol Actor has added inherited protocol AnyActor
 Protocol Actor has generic signature change from <Self : AnyObject, Self : Swift.Sendable> to <Self : _Concurrency.AnyActor>
 Struct CheckedContinuation has removed conformance to UnsafeSendable
 
-// SerialExecutor gained `enqueue(_:) moveonly `Job`, protocol requirements got default implementations from
+// SerialExecutor gained `enqueue(_: __owned Job)`, protocol requirements got default implementations
 Func SerialExecutor.enqueue(_:) has been added as a protocol requirement
-// ABI checker seems confused,
+
+// We deprecated `enqueue(_: UnownedJob)` and annotate it as such for all platforms,
+// while adding a new overload that accepts `Job` with new availability.
+// The ABI checker seems to be confused by this case.
+// rdar://106833284 (ABI checker confused with overload getting deprecated)
+Func Executor.enqueue(_:) is a new API without @available attribute
 
 // *** DO NOT DISABLE OR XFAIL THIS TEST. *** (See comment above.)