[mlir][ods] Fix OpFormatGen calling inferReturnTypes before region/segment resolution

The generated parser for ops with type inference calls `inferReturnTypes` before region resolution and segment attribute resolution, i.e. regions and the segment attributes are not passed to the `inferReturnTypes` even though it may need that information.

In particular, an op that has sized operand segments which queries those operands in its `inferReturnTypes` function will crash because the segment attributes hadn't been added yet.

Reviewed By: rriddle

Differential Revision: https://reviews.llvm.org/D115782