Conversion can happen for structure materialization (modf, frexp).
If both structure members are the same type and value, then a constant::Splat will be constructed, which needs to handle conversion.
Bug: chromium:1417515
Change-Id: Iadd14ce00b8d5c22226c601ec5af9a84e6c0c5cf
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/122900
Reviewed-by: James Price <jrprice@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Ben Clayton