Allow vector types to have index elements.

It is unclear why vector types were not allowed to have "index" as element
type.  Index values are integers, although of unknown bit width, and should
behave as such.  Vectors of integers are allowed and so are tensors of indices
(for indirection purposes), it is more consistent to also have vectors of
indices.

PiperOrigin-RevId: 220630123
5 files changed
tree: 7e69af282003e785ea07be88ccc75a665b2964de
  1. g3doc/
  2. include/
  3. lib/
  4. test/
  5. tools/
  6. utils/
  7. .clang-format
  8. LICENSE.TXT