* The values will be appended at the end. * * **NOTE** If `resolve()` or `reject()` have already been called, this method has no eff

* Test if `obj` is an `IRange`.

* See http://en.wikipedia.org/wiki/Surrogate_pair

* @returns whether the provided parameter is undefined or null.

* @deprecated DO NOT use, this leaks memory

* Compute `fsPath` for the given uri

* Adds the modified element at the given position to the elements * affected by the current change. The original index gives context

* Adds the original element at the given position to the elements * affected by the current change. The modified index gives context

* Concatenates the two input DiffChange lists and returns the resulting * list. * @param The left changes * @param The righ