Converting a node from pure to impure and vice versa is listed incorrectly in undo history.

When converting a node into a pure cast the undo/redo options and undo history will list it as a convert to impure cast. When converting a node into an impure cast the undo/redo options and undo history will list it as a convert to pure cast.

Setup:

• Open a copy of QAGame
• Open the undo history window.

Repro:

1. Navigate to QA_TestHelper and double click on it.
2. In the My Blueprint panel drag a UDSVar variable into the event graph as a Get.
3. Right click on the UDSVar output and convert that into a Split Struct Pin
4. Drag off the UDSVar Actor 4 output and connect it to a Cast to Static Mesh actor node.
5. Connect the ImaCustomEvent exec to the Cast to Static Mesh Actor node.
6. Drag off the As Static Mesh Actor on the Cast node and connect it to a DestroyActor node.
7. Right click on Cast Failed on the Cast node and select "convert to pure cast"
   • Check the undo history
8. Right click and convert the Cast node to "impure cast"
   • Check the undo history

Result: The conversions will be read as the opposition in the undo/redo options and undo history. (i.e "convert to pure" will be called convert to impure and "convert to impure" will be called convert to pure.

Expected Result: The conversions will be listed correctly in the undo/redo options and undo history.