Revert "Issue 88543: TextField labelText doesn't get hintTextStyle when labelTextStyle is non-null Fixed (#89386)" (#90406)

* Update AUTHORS

* trigger checks

This reverts commit 1002a768.

* Adding onLongPress for DataRow

Useful to be able to e.g. start a selection mode of rows or show a drop down menu.

* Test for onLongPress

* Changed parameter

* Fix Dismissible confirmDismiss errors

* +

* refactor test

* fix rebase

* remove new line

e314c7a8f [in_app_purchase] Ensure the `introductoryPriceMicros` field is populated correctly. (flutter/plugins#4364) (#90412)

See https://github.com/flutter/flutter/issues/74381

This cleans up the dismissable_test to be less fragile, and make it harder to forget to reset things between runs.

I eliminated a bunch of globals that were susceptible to being missed and passed them in to buildTest instead, and removed some values that were always the same (itemExtent).

Issue 88543: TextField labelText doesn't get hintTextStyle when labelTextStyle is non-null Fixed (#89386)

labelText now gets hintTextStyle when no labelStyle, per the docs