Merge pull request #16571 from slavapestov/fix-stdlib-nits

Fix minor stdlib nits

Author: slavapestov

stdlib/public/core/ContiguousArrayBuffer.swift

@@ -642,7 +642,7 @@ internal func _copyCollectionToContiguousArray<
     _uninitializedCount: count,
     minimumCapacity: 0)
 
-  var p = UnsafeMutableBufferPointer(start: result.firstElementAddress, count: count)
+  let p = UnsafeMutableBufferPointer(start: result.firstElementAddress, count: count)
   var (itr, end) = source._copyContents(initializing: p)
 
   _debugPrecondition(itr.next() == nil,

stdlib/public/core/KeyPath.swift

@@ -157,8 +157,7 @@ public class AnyKeyPath: Hashable, _AppendKeyPath {
     return try f(KeyPathBuffer(base: base))
   }
 
-  @_inlineable // FIXME(sil-serialize-all)
-  @_versioned // FIXME(sil-serialize-all)
+  @inlinable // FIXME(sil-serialize-all)
   internal var _storedInlineOffset: Int? {
     return withBuffer {
       var buffer = $0

stdlib/public/core/MemoryLayout.swift

@@ -212,7 +212,7 @@ extension MemoryLayout {
   /// result of `offset(of:)` changes to `nil`. That kind of conversion is
   /// non-breaking in other contexts, but would trigger a runtime error if the
   /// result of `offset(of:)` is force-unwrapped.
-  @_inlineable // FIXME(sil-serialize-all)
+  @inlinable // FIXME(sil-serialize-all)
   @_transparent
   public static func offset(of key: PartialKeyPath<T>) -> Int? {
     return key._storedInlineOffset