Fixes a bug in TensorStridedSliceUpdate

[eaplatanios]

@alextp Fixes a bug introduced in #27327 .

[eaplatanios]

@alextp Sorry I had to make an additional small change to pass the backwards compatibility test. This is necessary because I forgot to add the output definition in the op registration before.

[alextp]

You shouldn't need to make the change to op_history.pbtxt because adding an output is backward-compatible and manual edits to that file are only required for non-backwards-compatible changes.

That said it's not harmful.

[eaplatanios]

You shouldn't need to make the change to op_history.pbtxt because adding an output is backward-compatible and manual edits to that file are only required for non-backwards-compatible changes.

Thanks Alex! It's good to know that. The reason I actually did it is because this edit is technically not backwards-compatible as it changes the signature of the TensorStridedSliceAssign op (I had previously forgotten to declare that it has an output), thus resulting in a test failure.

[alextp]

Adding an output to an op is a backwards-compatible change though as it does not change the behavior of existing graphdefs.

[eaplatanios]

I see. Shouldn't the backwards compatibility check test take that into account then? Because it was failing until I made that change to op_history.pbtxt which added the output declaration.