The TypeConstructorExpression logic that tested for splats was not considering references. This led to broken emission for the SPIR-V and HLSL backends.
Fixed: tint:992
Change-Id: I9824b71f526997f91d380c09b459f4fd73065b19
Reviewed-on: https://dawn-review.googlesource.com/c/tint/+/58397
Auto-Submit: Ben Clayton <bclayton@google.com>
Commit-Queue: David Neto <dneto@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Reviewed-by: David Neto <dneto@google.com>