This patch implements the use of big integer values (>2^24 or <-2^24) as
the clear values of a render pass with an internal draw call as D3D12 API
only supports using float numbers as clear values.
Bug: dawn:537
Test: dawn_end2end_tests
Change-Id: Id0a7835d611f598fb77950915f69919f804a8702
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/98104
Kokoro: Kokoro <noreply+kokoro@google.com>
Commit-Queue: Jiawei Shao <jiawei.shao@intel.com>
Reviewed-by: Austin Eng <enga@chromium.org>
