CodeAction: convert lambda expression declaration to function

[Kingwl]

TypeScript Version: 2.7.0-dev.201xxxxx

Code

const a = (arg: number) => (
    <div>{arg}foo</div>
)

Expected behavior:

function a (arg: number) {
  return (
    <div>{arg}foo</div>
  )
}

Actual behavior:
none

btw: also convert function to lambda expression

[Kingwl]

from IDEA

[zaaack]

+1. Add braces is very useful, too.

[zzj3720]

+1. Add braces is very useful, too.

[AngryPowman]

Kingwl's proposals always help me a lot.

[vizee]

Kingwl's proposals always help AngryPowman a lot.

[ly0]

Kingwl's proposals always help AngryPowman a lottery.

[DanielRosenwasser]

@ly0's comments always help reiterate @vizee's points.

[whtsky]

I can't live without Kingwl's proposals.

[D0nGiovanni]

Hi

We're a team of two, currently on our bachelor thesis. We'd like to implement this issue. Estimated timeframe is about 2 weeks, at most 4 weeks. We're looking to do other refactorings and code fixes as well, but this would come first.