message: Fix ReadableStream constructor
diff: ],
  "constructor": {
  "override-signatures": [
  - "new<R = any>(underlyingSource?: UnderlyingSource<R>, strategy?: QueuingStrategy<R>): ReadableStream<R>",
  - "new(underlyingSource?: UnderlyingByteSource, strategy?: { highWaterMark?: number }): ReadableStream<Uint8Array>"
  + "new(underlyingSource: UnderlyingByteSource, strategy?: { highWaterMark?: number }): ReadableStream<Uint8Array>",
  + "new<R = any>(underlyingSource?: UnderlyingSource<R>, strategy?: QueuingStrategy<R>): ReadableStream<R>"
  ]
  },
  "methods": {
  