 //
 //===----------------------------------------------------------------------===//
 
-@_fixed_layout
-@usableFromInline
 internal struct _BridgingBufferHeader {
-  @inlinable
   internal init(_ count: Int) { self.count = count }
-  @usableFromInline
   internal var count: Int
 }
 
-@usableFromInline
-@_fixed_layout
 internal final class _BridgingBufferStorage
   : ManagedBuffer<_BridgingBufferHeader, AnyObject> {
 }
 
-@usableFromInline
 internal typealias _BridgingBuffer
   = ManagedBufferPointer<_BridgingBufferHeader, AnyObject>
 
 extension ManagedBufferPointer
 where Header == _BridgingBufferHeader, Element == AnyObject {
-  @inlinable
   internal init(_ count: Int) {
     self.init(
       _uncheckedBufferClass: _BridgingBufferStorage.self,

    }
  }

  @inlinable
  internal subscript(i: Int) -> Element {
    @inline(__always)
    get {

    }
  }

  internal var storage: AnyObject? {
    @inline(__always)
    get {
