* While `isCollapsed` is available on the Selection object and `collapsed` * is available on the Range object, IE11 sometimes gets them wrong. * If

* Does our fallback mode think that this event is the end of composition? * * @param {string} topLevelType * @param {object} nativeEvent * @return

* @param {*} object The object to check. * @return {boolean} Whether or not the object is a DOM text node.

* @param {?object} object * @return {boolean} True if `object` is a valid owner. * @final

* Merge two objects, but throw if both contain the same key. * * @param {object} one The first object, which is mutated. * @param {object} tw

* Parse a string for the raw tokens. * * @param {string} str * @param {Object=} options * @return {!Array}

* Populate `_hostNode` on each child of `inst`, assuming that the children * match up with the DOM (element) children of `node`. * * We cache entir

* Publishes a registration name that is used to identify dispatched events and * can be used with `EventPluginHub.putListener` to register listeners.

* Recomputes the plugin list using the injected plugins and plugin ordering. * * @private

* (For IE <=9) Removes the event listeners from the currently-tracked element, * if any exists.

* @param {?*} children Children tree container. * @param {!string} nameSoFar Name of the key path so far. * @param {!function} callback Callback to