Apply suggestions from code review

Co-authored-by: Doug Gregor <[email protected]>

Author: ktoso

stdlib/public/BackDeployConcurrency/TaskLocal.swift

@@ -218,15 +218,15 @@ public final class TaskLocal<Value: Sendable>: Sendable, CustomStringConvertible
 // ==== ------------------------------------------------------------------------
 
 @available(SwiftStdlib 5.1, *)
-@_alwaysEmitIntoClient
+@usableFromInline
 @_silgen_name("swift_task_localValuePush")
 func _taskLocalValuePush<Value>(
   key: Builtin.RawPointer/*: Key*/,
   value: __owned Value
 ) // where Key: TaskLocal
 
 @available(SwiftStdlib 5.1, *)
-@_alwaysEmitIntoClient
+@usableFromInline
 @_silgen_name("swift_task_localValuePop")
 func _taskLocalValuePop()
 

stdlib/public/Concurrency/TaskLocal.swift

@@ -218,15 +218,15 @@ public final class TaskLocal<Value: Sendable>: Sendable, CustomStringConvertible
 // ==== ------------------------------------------------------------------------
 
 @available(SwiftStdlib 5.1, *)
-@_alwaysEmitIntoClient
+@usableFromInline
 @_silgen_name("swift_task_localValuePush")
 func _taskLocalValuePush<Value>(
   key: Builtin.RawPointer/*: Key*/,
   value: __owned Value
 ) // where Key: TaskLocal
 
 @available(SwiftStdlib 5.1, *)
-@_alwaysEmitIntoClient
+@usableFromInline
 @_silgen_name("swift_task_localValuePop")
 func _taskLocalValuePop()