Fix doc errors.

Cesium3DTilesSelection/include/Cesium3DTilesSelection/DebugTileStateDatabase.h

@@ -34,7 +34,7 @@ public:
    *
    * The state is obtained from the view group's
    * {@link TilesetViewGroup::getTraversalState} by calling
-   * {@link TreeTraversalState::slowlyGetPreviousStates}.
+   * {@link CesiumUtility::TreeTraversalState::slowlyGetPreviousStates}.
    *
    * @param frameNumber The current frame number.
    * @param tileset The tileset.
@@ -50,7 +50,7 @@ public:
    *
    * The state is obtained from the view group's
    * {@link TilesetViewGroup::getTraversalState} by calling
-   * {@link TreeTraversalState::slowlyGetPreviousStates}.
+   * {@link CesiumUtility::TreeTraversalState::slowlyGetPreviousStates}.
    *
    * @param frameNumber The current frame number.
    * @param viewGroup The view group.

Cesium3DTilesSelection/include/Cesium3DTilesSelection/TilesetViewGroup.h

@@ -25,8 +25,8 @@ class CESIUM3DTILESSELECTION_API TilesetViewGroup final
     : public TileLoadRequester {
 public:
   /**
-   * @brief The type of the {@link TreeTraversalState} used to track tile
-   * selection states for this view group.
+   * @brief The type of the {@link CesiumUtility::TreeTraversalState}
+   * used to track tile selection states for this view group.
    */
   using TraversalState = CesiumUtility::TreeTraversalState<
       CesiumUtility::IntrusivePointer<const Tile>,

CesiumUtility/include/CesiumUtility/TreeTraversalState.h

@@ -151,9 +151,9 @@ public:
    * {@link finishNode}.
    *
    * After `finishNode`, this node's parent node becomes the "current" node.
-   * {@link previousState} and {@link nextState} will return
-   * previous the states of this node's parent. A call to {@link beginNode}
-   * will delineate a new child of that same parent.
+   * {@link previousState} and {@link currentState} will return
+   * the states of this node's parent. A call to {@link beginNode} will
+   * delineate a new child of that same parent.
    *
    * @param pNode The node that is done being traversed.
    */