message: Fix double to float conversion warning on MSVC
diff: @@ -435,7 +435,7 @@ class TextureFormatTest : public DawnTest {
  ASSERT(formatInfo.type == Float);
  std::vector<float> textureData = {+0.0f, -0.0f, 1.0f, 1.0e-29f,
  - 1.0e29, NAN, INFINITY, -INFINITY};
  + 1.0e29f, NAN, INFINITY, -INFINITY};
  DoFloatFormatSamplingTest(formatInfo, textureData, textureData);
  DoFormatRenderingTest(formatInfo, textureData, textureData);
  @@ -452,7 +452,7 @@ class TextureFormatTest : public DawnTest {
  textureData.push_back(Float32ToFloat16(value));
  }
  - DoFloatFormatSamplingTest(formatInfo, textureData, uncompressedData, 1.0e-5);
  + DoFloatFormatSamplingTest(formatInfo, textureData, uncompressedData, 1.0e-5f);
  // Use a special expectation that knows that all Float16 NaNs are equivalent.
  DoFormatRenderingTest(formatInfo, uncompressedData, textureData,
  