[flang-commits] [flang] [flang] Move whole allocatable assignment implicit conversion to lowering (PR #70317)

[Pete Steinfeld via flang-commits]

https://github.com/psteinfeld commented:

I only saw a few nits.  And I verified that the changes fix the original problem.

But someone who understands the code better than I do should approve.

https://github.com/llvm/llvm-project/pull/70317