Reference TMs and HMs by move instead of number (#1732)

data/maps/ShoalCave_LowTideIceRoom/map.json

@@ -24,8 +24,8 @@
       "movement_range_y": 1,
       "trainer_type": "TRAINER_TYPE_NONE",
       "trainer_sight_or_berry_tree_id": "0",
-      "script": "ShoalCave_LowTideIceRoom_EventScript_ItemTM07",
-      "flag": "FLAG_ITEM_SHOAL_CAVE_ICE_ROOM_TM07"
+      "script": "ShoalCave_LowTideIceRoom_EventScript_ItemTMHail",
+      "flag": "FLAG_ITEM_SHOAL_CAVE_ICE_ROOM_TM_HAIL"
     },
     {
       "graphics_id": "OBJ_EVENT_GFX_ITEM_BALL",