2 tasks

This partially reverts  0401550 .
The changes to array `.real` and `.imag` are undone - the implementation
of `.imag` for real arrays looks a little different than the original
version because the helper function it used, `numpy_zeros_like_nd()`,
no longer exists. However, the code in this branch implements the
equivalent operation of creating an empty array and filling it with
zeroes.
The fixups that were part of the reverted commit are not undone, because
they are necessary for correctness and don't have any negative
side-effects.

gmarkall changed the title [WIP] Debugging Issue #8309 CUDA: Fix Issue #8309 (atomics don't work on complex components) by reverting them from overloads back to low-level API

gmarkall changed the title CUDA: Fix Issue #8309 (atomics don't work on complex components) by reverting them from overloads back to low-level API CUDA: Fix Issue #8309 - atomics don't work on complex components

Co-authored-by: stuartarchibald <stuartarchibald@users.noreply.github.com>

Merged