Tidy up the parser checks for AsyncStart/Update/Done. #34907
+25
−71
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Tidy up the parser checks for AsyncStart/Update/Done.
Previously, we check that AsyncUpdate/Done have a single operand with a shape that conforms to the shape of AsyncStart, and the single operand is an Asynchronous op. This is now replaced by ensuring that AsyncUpdate/Done have a single operand which is an AsyncStart/Update.
Previously, we check that AsyncUpdate has a result shape that conforms to the shape of AsyncStart. This is now replaced by ensuring that the AsyncUpdate operand and result have the same shape, like the HloVerifier does.