_fastEnumerationStorageMutationsTarget exists to be usableFromInline

Author: airspeedswift

stdlib/public/core/Shims.swift

@@ -27,12 +27,12 @@ internal func _makeSwiftNSFastEnumerationState()
 
 /// A dummy value to be used as the target for `mutationsPtr` in fast
 /// enumeration implementations.
-@usableFromInline // FIXME(sil-serialize-all)
+@usableFromInline
 internal var _fastEnumerationStorageMutationsTarget: CUnsignedLong = 0
 
 /// A dummy pointer to be used as `mutationsPtr` in fast enumeration
 /// implementations.
-@usableFromInline // FIXME(sil-serialize-all)
+@usableFromInline
 internal let _fastEnumerationStorageMutationsPtr =
   UnsafeMutablePointer<CUnsignedLong>(Builtin.addressof(&_fastEnumerationStorageMutationsTarget))
 #endif