Disable EncodeUBOOverflowMultipleSubmit test on D3D12 + WARP

Bug: dawn:742
Change-Id: I11fc4c49c4040d694703ed43ebd8b1e2fe62bf17
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/46366
Commit-Queue: Ben Clayton <bclayton@google.com>
Reviewed-by: Corentin Wallez <cwallez@chromium.org>

src/tests/white_box/D3D12DescriptorHeapTests.cpp

diff --git a/src/tests/white_box/D3D12DescriptorHeapTests.cpp b/src/tests/white_box/D3D12DescriptorHeapTests.cpp
index 9b18b7b..8d061e8 100644
--- a/src/tests/white_box/D3D12DescriptorHeapTests.cpp
+++ b/src/tests/white_box/D3D12DescriptorHeapTests.cpp
@@ -514,6 +514,9 @@
     DAWN_SKIP_TEST_IF(!mD3DDevice->IsToggleEnabled(
         dawn_native::Toggle::UseD3D12SmallShaderVisibleHeapForTesting));
 
+    // TODO(crbug.com/dawn/742): Test output is wrong with D3D12 + WARP.
+    DAWN_SKIP_TEST_IF(IsD3D12() && IsWARP());
+
     utils::ComboRenderPipelineDescriptor renderPipelineDescriptor(device);
 
     utils::BasicRenderPass renderPass = utils::CreateBasicRenderPass(device, kRTSize, kRTSize);