[NPC] Reprogrammed Shredder NPC=35129

[kissame10]

• [Location, Faction, Race] Azshara - Horde - Machine
• [Name, Type] Reprogrammed Shredder - NPC
• [Problem Description] In quest=14146 you take control of a robot, and when you press spell 1, the robot self-destructs and you lose it. Pressing ability 2 prevents you from doing so, displaying "invalid target" even if you have NPC=35177 clicked on it. Finally, pressing ability 4 triggers the grenade throwing animation, but it doesn't damage any of the NPCs.
• [How it should work] The machine's three abilities must allow the selection of the NPC as a valid target to damage them and advance the mission, and ability 1 should enable the saw to damage the NPCs.