If the let initializer was an abstract numeric that was implicitly materialized to a concrete type, then we could inlining the initializer into the use without the implicit materialization cast.
This could lead to validation errors, and subtly different results in the program.
In this situation, add an explicit cast to keep the types the same before and after inlining.
Fixed: tint:1664
Change-Id: Icca980cf8af74673906ad6c681a6b07d0c1932fd
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/101160
Reviewed-by: Antonio Maiorano <amaiorano@google.com>
Commit-Queue: Ben Clayton <bclayton@google.com>
Kokoro: Kokoro <noreply+kokoro@google.com>
8b30ca3efa