message: Add dummy (for now) implementations of OpUConvert/OpSConvert
diff: @@ -952,6 +952,28 @@ void ThreadState::StepNext(ShaderDebugState *state, const rdcarray<ThreadState>
  SetDst(quant.result, var);
  break;
  }
  + case Op::UConvert:
  + {
  + OpUConvert cast(it);
  +
  + ShaderVariable var = GetSrc(cast.unsignedValue);
  +
  + // TODO - conversion between bit widths once we support it
  +
  + SetDst(cast.result, var);
  + break;
  + }
  + case Op::SConvert:
  + {
  + OpSConvert cast(it);
  +
  + ShaderVariable var = GetSrc(cast.signedValue);
  +
  + // TODO - conversion between bit widths once we support it
  +
  + SetDst(cast.result, var);
  + break;
  + }
  case Op::FConvert:
  {
  OpFConvert cast(it);
  