Object.freeze on an array should result in a read-only array

Flow version: 0.98.1

## Expected behavior
Given this input:
```
const x = Object.freeze(['hello']);
x.push(1);
```
The `push` will fail at runtime. Flow should recognise that the array is read-only. I guess given an `Array` passed to `Object.freeze`, the result should be a `$ReadOnlyArray`

## Actual behavior
Flow does not flag any errors

TypeScript correctly flags this: `Property 'push' does not exist on type 'readonly string[]'.`

Link to Try-Flow: https://flow.org/try/#0MYewdgzgLgBAHjAvDA8gIwFYFNhQHQBmATllgF5YAUA2gOQAWWANkyLQLoCUA3AFBx4ADgFcI9SgEYeQA