src/vs/editor/common/model/editStack.ts/EditStack/pushEOL
class EditStack:	public pushEOL(eol: EndOfLineSequence): void {
		const editStackElement = this._getOrCreateEditStackElement(null, undefined);
		this._model.setEOL(eol);
		editStackElement.append(this._model, [], getModelEOL(this._model), this._model.getAlternativeVersionId(), null);
	}