Flow: Weird error messages when adding object to number

[chicoxyzzy]

https://flowtype.org/try/#0PQKgBAAgZgNg9gdzCYAoVBGMBqMBvAXwG4g

The weird part is that first two errors are pointing to the same 1 which is mentioned as number and string at the same time and it is also mentioned that I try to add it to itself

3: 1 + {};
   ^ number. This type cannot be added to
3: 1 + {};
   ^ string
3: 1 + {};
       ^ object literal. This type cannot be added to
3: 1 + {};
   ^ string

[chicoxyzzy]

IMO the output above should look like

3: 1 + {};
   ^ string (coerced from number). This type cannot be added to
3: 1 + {};
       ^ object literal. This type cannot be added to
3: 1 + {};
   ^ string

or even better

3: 1 + {};
   ^ number. This type cannot be added to
3: 1 + {};
       ^ object literal. This type cannot be added to
3: 1 + {};
   ^ number

[mroch]

that's bizarre... it should just be

3: 1 + {};
       ^ object literal. This type cannot be added to
3: 1 + {};
   ^ number

I'll look into it. thanks!