Have ipfs ls return type as strings

[dokterbob]

Version information:

0.4.18

Type:

Bug

Description:

The ipfs ls command, when run with --enc=json, returns the types of listed items as rather meaningless numbers, whereas other places (i.e. ipfs files stat and the hopefully-soon-deprecated ipfs file ls return strings). It would be great to have this consistently return a string. Very low-hanging fruit, although perhaps a (much needed) breaking change.

Discussed before with @Stebalien in #4580.

[dokterbob]

Related: #3081

[ec1oud]

Is there agreement that it should be a string? See #5026

[Stebalien]

Probably but it's also not worth breaking the API over. We plan on making a complete pass over the API before a 1.0 release and will likely tackle it then.