This is a testharness.js-based test.
[FAIL] TextDecoderStream: write in detached realm should succeed
  promise_test: Unhandled rejection with value: object "TypeError: Failed to execute 'write' on 'WritableStreamDefaultWriter': invalid realm"
[FAIL] TextEncoderStream: write in detached realm should succeed
  promise_test: Unhandled rejection with value: object "TypeError: Failed to execute 'write' on 'WritableStreamDefaultWriter': invalid realm"
[FAIL] TextEncoderStream: close in detached realm should succeed
  promise_test: Unhandled rejection with value: object "TypeError: Failed to execute 'close' on 'WritableStream': invalid realm"
[FAIL] TextDecoderStream: close in detached realm should succeed
  promise_test: Unhandled rejection with value: object "TypeError: Failed to execute 'close' on 'WritableStream': invalid realm"
Harness: the test ran to completion.