BUG: cast_pointwise_result with BooleanDtype and all-NA values #62344
Description
Pandas version checks
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I have checked that this issue has not already been reported.
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I have confirmed this bug exists on the latest version of pandas.
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I have confirmed this bug exists on the main branch of pandas.
Reproducible Example
arr = pd.array([True, False])
values = [pd.NA]
result = arr._cast_pointwise_result(values)
>>> result
array([<NA>], dtype=object)Issue Description
We'd expect this to retain BooleanDtype.
Expected Behavior
NA
Installed Versions
Replace this line with the output of pd.show_versions()