Remove atomic protocols

All the calls here are concrete; there's no need for conformances

Author: natecook1000

Sources/_LazyAtomic/AtomicValue.swift

@@ -13,7 +13,7 @@
 
 import _LazyAtomicShims
 
-extension Int: AtomicValue {
+extension Int {
   @frozen
   public struct AtomicRepresentation {
     public typealias Value = Int
@@ -43,7 +43,7 @@ where Pointee == Int.AtomicRepresentation {
   }
 }
 
-extension Int.AtomicRepresentation: AtomicStorage {
+extension Int.AtomicRepresentation {
   @_semantics("atomics.requires_constant_orderings")
   @_transparent @_alwaysEmitIntoClient
   public static func atomicLoad(

Sources/_LazyAtomic/Int.swift

@@ -11,75 +11,7 @@
 
 // THIS FILE IS PART OF A SUBSET OF https://github.com/apple/swift-atomics/
 
-extension Unmanaged: AtomicValue {
-  @frozen
-  public struct AtomicRepresentation {
-    public typealias Value = Unmanaged
-    @usableFromInline internal typealias Storage = Int.AtomicRepresentation
-
-    @usableFromInline
-    internal let _storage: Storage
-
-    @inline(__always) @_alwaysEmitIntoClient
-    public init(_ value: Value) {
-      self._storage = .init(Self._encode(value))
-    }
-
-    @inline(__always) @_alwaysEmitIntoClient
-    public func dispose() -> Value {
-      Self._decode(_storage.dispose())
-    }
-  }
-}
-
-extension Unmanaged.AtomicRepresentation {
-  @_transparent @_alwaysEmitIntoClient
-  @usableFromInline
-  internal static func _extract(
-    _ ptr: UnsafeMutablePointer<Self>
-  ) -> UnsafeMutablePointer<Storage> {
-    // `Self` is layout-compatible with its only stored property.
-    return UnsafeMutableRawPointer(ptr)
-      .assumingMemoryBound(to: Storage.self)
-  }
-
-  @_transparent @_alwaysEmitIntoClient
-  internal static func _decode(_ bitPattern: Int) -> Value {
-    return Unmanaged.fromOpaque(UnsafeRawPointer(bitPattern: bitPattern)!)
-  }
-
-  @_transparent @_alwaysEmitIntoClient
-  internal static func _encode(_ value: Value) -> Int {
-    return Int(bitPattern: value.toOpaque())
-  }
-}
-
-extension Unmanaged.AtomicRepresentation: AtomicStorage {
-  @_semantics("atomics.requires_constant_orderings")
-  @_transparent @_alwaysEmitIntoClient
-  public static func atomicLoad(
-    at pointer: UnsafeMutablePointer<Self>
-  ) -> Value {
-    let encoded = Storage.atomicLoad(at: _extract(pointer))
-    return _decode(encoded)
-  }
-
-  @_semantics("atomics.requires_constant_orderings")
-  @_transparent @_alwaysEmitIntoClient
-  public static func atomicCompareExchange(
-    expected: Value,
-    desired: Value,
-    at pointer: UnsafeMutablePointer<Self>
-  ) -> (exchanged: Bool, original: Value) {
-    let (exchanged, original) = Storage.atomicCompareExchange(
-      expected: _encode(expected),
-      desired: _encode(desired),
-      at: _extract(pointer))
-    return (exchanged, _decode(original))
-  }
-}
-
-extension Unmanaged: AtomicOptionalWrappable {
+extension Unmanaged {
   @frozen
   public struct AtomicOptionalRepresentation {
     public typealias Value = Unmanaged?
@@ -126,7 +58,7 @@ extension Unmanaged.AtomicOptionalRepresentation {
   }
 }
 
-extension Unmanaged.AtomicOptionalRepresentation: AtomicStorage {
+extension Unmanaged.AtomicOptionalRepresentation {
   @_semantics("atomics.requires_constant_orderings")
   @_transparent @_alwaysEmitIntoClient
   public static func atomicLoad(

Sources/_LazyAtomic/Optional.swift

@@ -16,7 +16,7 @@ public struct UnsafeAtomicLazyReference<Instance: AnyObject> {
   public typealias Value = Instance?
 
   @usableFromInline
-  internal typealias _Rep = Optional<Unmanaged<Instance>>.AtomicRepresentation
+  internal typealias _Rep = Unmanaged<Instance>.AtomicOptionalRepresentation
 
   @usableFromInline
   internal let _ptr: UnsafeMutablePointer<_Rep>