Test `WaveReadLaneAt.index.test` in clang-vulkan config fails due to validatoin error with VUID-VkShaderModuleCreateInfo-pCode-08741

[bob80905]

Logs:

# .---command stdout------------
# | Validation Error: [ VUID-VkShaderModuleCreateInfo-pCode-08741 ] | MessageID = 0x938b32
# | vkCreateShaderModule(): SPIR-V Extension SPV_KHR_no_integer_wrap_decoration was declared, but that is not supported by Vulkan.
# | The Vulkan spec states: If pCode is a pointer to SPIR-V code, pCode must not declare any SPIR-V extension that is not supported by the API, as described by the Extension section of the SPIR-V Environment appendix (https://vulkan.lunarg.com/doc/view/1.4.313.1/windows/antora/spec/latest/chapters/shaders.html#VUID-VkShaderModuleCreateInfo-pCode-08741)
# | 

This is the source that triggered it:

StructuredBuffer<int> InInt : register(t0);
RWStructuredBuffer<int> OutBroadcast : register(u1);
RWStructuredBuffer<int> OutShift : register(u2);
RWStructuredBuffer<int> OutMix : register(u3);

[numthreads(4,1,1)]
void main(uint3 TID : SV_GroupThreadID) {
  OutBroadcast[TID.x] = WaveReadLaneAt(InInt[TID.x], 2);

  uint PosShiftIndex = (TID.x + 1) % 4;
  int PosValue = WaveReadLaneAt(InInt[TID.x], PosShiftIndex);
  uint NegShiftIndex = (TID.x - 1) % 4;
  int NegValue = WaveReadLaneAt(InInt[TID.x], NegShiftIndex);
  OutShift[TID.x] = PosValue + NegValue;

  uint MixIndex = 0;
  switch (TID.x) {
    case 0:
      MixIndex = 2;
      break;
    case 1:
      MixIndex = 3;
      break;
    case 2:
      MixIndex = 1;
      break;
    default:
      break;
  }

  OutMix[TID.x] = WaveReadLaneAt(InInt[TID.x], MixIndex);
}

Run line:

# RUN: split-file %s %t
# RUN: %dxc_target -T cs_6_5 -Fo %t.o %t/source.hlsl
# RUN: %offloader %t/pipeline.yaml %t.o