Replace uses of data_frame() by tibble()

[romainfrancois]

This issue is to be dealt with on Tidyverse developer day 2019. 🙏 don't submit pull requests for it outside of the event. We are of course interested in having this fixed, but much more interested in doing it as part of the developer day

• identify uses of the deprecated function data_frame() in the dplyr codebase: code, docs, tests, vignette.
• replace with uses of tibble()

Bonus: other 📦 might be using data_frame():

• identify them, perhaps using gh to search github or maybe crandb
• submit pull requests

[Copepoda]

I'm working on this :)

[lock]

This old issue has been automatically locked. If you believe you have found a related problem, please file a new issue (with reprex) and link to this issue. https://reprex.tidyverse.org/