Unable to use an instance of Type when constructing an instance of a parameterized type

[sethladd]

Consider this code:

DB.get(Person, id).then((person) ...)

And the implementation:

static Future<?? how to put type here> get(Type type, String id) {
  var completer = new Completer<?? how to put type here>(); // ERROR can't use 'type' here

  // ...

  return completer.future;
}

[lrhn]

This seems like a request for type-parameterized/generic methods.

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Added Duplicate label.
Marked as being merged into #254.