Rule sortKeys breaks type format when declared before an object

[luisfmsouza]

When eslint-plugin-flowtype try to format the following code:

type FooType = {|
  c: number,
  b: number,
  a: number
|}

const Dummy = {
  a: true
}

It generates the following result:

type FooType = {|
  a: number
|}

const Dummy,
  b: number,
  a: number
|}

const Dummy = {
  a: true
}

I created a branch with this broken scenario.