LastIndexOf 
by jiangshan @jiangshanmeta
Implement the type version of ```Array.lastIndexOf```, ```LastIndexOf``` takes an Array ```T```, any ```U``` and returns the index of the last ```U``` in Array ```T```
For example:
```typescript
type Res1 = LastIndexOf<[1, 2, 3, 2, 1], 2> // 3
type Res2 = LastIndexOf<[0, 0, 0], 2> // -1
```
