ENH/API: errors argument for ExtensionArray.astype

[dsaxton]

Series.astype and DataFrame.astype both allow control over whether the original object should be returned on errors in conversion by setting the errors argument to either "ignore" or "raise". Should ExtensionArray.astype also allow this?

https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.Series.astype.html
https://pandas.pydata.org/pandas-docs/stable/reference/api/pandas.DataFrame.astype.html

xref #35979

[jorisvandenbossche]

Personally I would keep this ability on the Series/DataFrame level, and not complicate the ExtensionArray interface with it.

[jbrockmendel]

I agree with @jorisvandenbossche on this one.

[dsaxton]

I think not overcomplicating makes sense