Table of Operands for operations like:
https://mlir.llvm.org/docs/Dialects/MemRef/#operands-6
Don't distinguish variadic ODS operands from others right now.
After this change, it'll print:
| Operand | Description |
| dynamicSizes | Variadic of index |
instead of:
| Operand | Description |
| dynamicSizes | index |