[SPIR-V] Run command in CodeGenSPIRV/intrinsics.sm6_6.ishelperlane.hlsl uses ps_6_0 instead of ps_6_6

[chaoticbob]

Don't this matters in practice, but the run command at the top of this file is using ps_6_0 instead of ps_6_6:
https://github.com/microsoft/DirectXShaderCompiler/blob/main/tools/clang/test/CodeGenSPIRV/intrinsics.sm6_6.ishelperlane.hlsl

// RUN: %dxc -T ps_6_0 -E main -fcgl  %s -spirv | FileCheck %s

Feature is SM 6.6 and file has sm6.6 in the name.

Just wanted to note this for the sake of consistency.

[llvm-beanz]

For DXIL we emulate IsHelperLane when targeting earlier shader models, so this feature is available in SM 6.0.

[chaoticbob]

Ahh, my bad. i thought it was strictly SM 6.6 and the SPIR-V backend was making it available to SM 6.0.