getItemEnchantability

MethodNode method = new MethodNode(ACC_PUBLIC, "getItemEnchantability", "()I", null, null);
method.instructions.add(new FieldInsnNode(GETFIELD, "net/minecraft/item/ItemHoe", "theToolMaterial", Type.getObjectType("net/minecraft/item/Item$ToolMaterial").toString()));
method.instructions.add(new MethodInsnNode(INVOKEVIRTUAL, "net/minecraft/item/Item$ToolMaterial", "getEnchantability", "()I"));
method.instructions.add(new InsnNode(IRETURN));
clazz.methods.add(method);