message: Disable tests for BF16 and S64
diff: @@ -37,6 +37,7 @@ ConvolutionTest.Convolve_bf16_1x1x1x2_1x1x1x2_Valid POPLAR
  MatOpsDotAddTest.Dot_Add_2x2_2x2BF16 POPLAR
  PrngTest.ScalarBF16Tests POPLAR
  PrngTest.ScalarBF16CountTests POPLAR
  +DynamicUpdateSliceTest.Int32R0BF16 POPLAR
  UnaryOpTest.UnsignedAbsTestR1 POPLAR // U32
  UnaryOpTest.UnsignedSignTestR1 POPLAR
  @@ -110,6 +111,7 @@ DynamicSliceTest.Int64R2 POPLAR
  DynamicSliceTest.Int64R1 POPLAR
  ScalarComputationsTest.CastS64ToF32 POPLAR
  ConvertTest.ConvertR1S64ToR1F32 POPLAR
  +ConvertTest.ConvertR1F32ToR1S64 POPLAR
  ScalarComputationsTest.AddTwoScalarsU64 POPLAR // U64
  DynamicUpdateSliceTest.UInt64R3 POPLAR
  