message: [SwiftREPL] Re-enable ExclusivityREPL.
diff: // Runtime checks for exclusive access should be enabled in the REPL.
  -// REQUIRES: rdar53117564
  -// swift-lldb: DISABLED because it fails sporadically due to a race condition.
  -
  // RUN: %lldb --repl < %s 2>&1 | FileCheck %s
  // CHECK: modification requires exclusive access
  // CHECK: Execution interrupted
  