Panic on `wgpuDeviceCreateModuleSpirV` with SpirvShaderPassthrough enabled

[radgeRayden]

In v27.0.2.0, when trying to use pass-through shaders I get the following error:

Validation Error

Caused by:
  In wgpuDeviceCreateShaderModuleSpirV
    Features Features { features_wgpu: FeaturesWGPU(EXPERIMENTAL_PASSTHROUGH_SHADERS), features_webgpu: FeaturesWebGPU(0x0) } are required but not enabled on the device

even though SpirvShaderPassthrough was required during device creation, which didn't fail.

[Vipitis]

I believe all experimental features, even if requested - are disabled because of this line here

wgpu-native/src/conv.rs

Line 384 in 74f8c24

experimental_features: wgt::ExperimentalFeatures::disabled(),

and it's currently not exposed to set that to enable (or perhaps enable automatically when experimental features are requested?).