stream: rename unknown primordial

The primordials does not expose a primordial called `DataViewCtor`, leading up to a non-existent constructor. Fixes: #40612

Author: VoltrexKeyva

lib/internal/webstreams/readablestream.js

@@ -7,7 +7,7 @@ const {
  ArrayBufferPrototypeSlice,
  ArrayPrototypePush,
  ArrayPrototypeShift,
- DataViewCtor,
+ DataView,
  FunctionPrototypeBind,
  FunctionPrototypeCall,
  MathMin,
@@ -2100,7 +2100,7 @@ function readableByteStreamControllerPullInto(
  pendingPullIntos,
  } = controller[kState];
  let elementSize = 1;
- let ctor = DataViewCtor;
+ let ctor = DataView;
  if (isArrayBufferView(view) && !isDataView(view)) {
  elementSize = view.constructor.BYTES_PER_ELEMENT;
  ctor = view.constructor;

test/parallel/test-whatwg-readablestream.js

@@ -1570,3 +1570,18 @@ class Source {
  isDisturbed(stream, true);
  })().then(common.mustCall());
 }
+
+{
+ const stream = new ReadableStream({
+ type: 'bytes',
+ start(controller) {
+ controller.close();
+ }
+ });
+
+ const buffer = new ArrayBuffer(1024);
+ const reader = stream.getReader({ mode: 'byob' });
+
+ reader.read(new DataView(buffer))
+ .then(common.mustCall());
+}