message: Fix conv2d shape in flatbuffer2mlir/optional_input.json
diff: // This test is to test that if the flatbuffer omits the last optional input `bias` of tfl.conv_2d op, the flatbuffer_importer will automatically adds `none` value to tfl.conv_2d.
  // CHECK: %cst = constant unit
  -// CHECK: %[[RES0:.*]] = "tfl.conv_2d"(%arg0, %arg1, %cst) {dilation_h_factor = 1 : i32, dilation_w_factor = 1 : i32, fused_activation_function = "NONE", padding = "SAME", stride_h = 0 : i32, stride_w = 0 : i32} : (tensor<256x32x32x3xf32>, tensor<16x3x3x3xf32>, none) -> tensor<256x32x32x16xf32>
  +// CHECK: %[[RES0:.*]] = "tfl.conv_2d"(%arg0, %arg1, %cst) {dilation_h_factor = 1 : i32, dilation_w_factor = 1 : i32, fused_activation_function = "NONE", padding = "SAME", stride_h = 1 : i32, stride_w = 1 : i32} : (tensor<256x32x32x3xf32>, tensor<16x3x3x3xf32>, none) -> tensor<256x32x32x16xf32>
  // CHECK: return %[[RES0]] : tensor<256x32x32x16xf32>
  {
  - version: 3,
  - operator_codes: [
  + "version": 3,
  + "operator_codes": [
  {
  - builtin_code: "CONV_2D",
  + "builtin_code": "CONV_2D"
  }
  ],
  - subgraphs: [
  + "subgraphs": [
  {
  - tensors: [
  + "tensors": [
  {
  - shape: [
  + "shape": [
  256,
  32,
  32,
  3
  ],
  - name: "arg0",
  - quantization: {
  + "name": "arg0",
  + "quantization": {
  }
  },
  {
  - shape: [
  + "shape": [
  16,
  3,
  3,
  3
  ],
  - name: "arg1",
  - quantization: {
  + "name": "arg1",
  + "quantization": {
  }
  },
  {
  - shape: [
  + "shape": [
  256,
  32,
  32,
  16
  ],
  - name: "output",
  - quantization: {
  + "name": "output",
  + "quantization": {
  + }
  }
  - },
  ],
  - inputs: [
  + "inputs": [
  0,
  1
  ],
  - outputs: [
  + "outputs": [
  2
  ],
  - operators: [
  + "operators": [
  {
  - inputs: [
  + "inputs": [
  0,
  1
  ],
  - outputs: [
  + "outputs": [
  2
  ],
  - builtin_options_type: "Conv2DOptions",
  - builtin_options: {
  + "builtin_options_type": "Conv2DOptions",
  + "builtin_options": {
  + "stride_w": 1,
  + "stride_h": 1
  }
  }
  ],
  - name: "main"
  + "name": "main"
  }
  ],
  - description: "MLIR Converted."
  + "description": "MLIR Converted."
  }
  