* Add `memref::getMixedSize` (same as in the tensor dialect).
* Simplify in-bounds check in `VectorTransferSplitRewritePatterns.cpp` and fix off-by-one error in the static in-bounds check.
* Use "memref::DimOp" instead of `createOrFoldDimOp` when possible.
Differential Revision: https://reviews.llvm.org/D154218