feat: Use React.Fragment as default textComponent

[longlho]

• Fix some any casting
• Fix tests
• Closes FormattedMessage tagName propTypes should accept React.Fragment #1262

[redonkulus]

FYI the convo from the open issue and linked issues #987

[longlho]

Yup I saw that one while going thru issues

…

On Tue, Jun 18, 2019 at 9:31 PM Seth Bertalotto ***@***.***> wrote: FYI the convo from the open issue and linked issues #987 <#987> — You are receiving this because you authored the thread. Reply to this email directly, view it on GitHub <#1326>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AABQM37YIT4SJPTB2FRXNZLP3GEATANCNFSM4HZE4ZCQ> .

[redonkulus]

It’s a large change for users. If we want to do this, we should mention how they can keep the span in the upgrade guide.

[longlho]

done

[slorber]

awesome :) please ping when there is a release

[marcesengel]

@longlho if we decide to do #1330, do you agree we should make this the default over React.Fragment?

[longlho]

yup wait sorry no, bc of RN