message: Classify bitcast as inplace-read-only
diff: @@ -501,6 +501,7 @@ HloInstructionDescription::HloInstructionDescription(
  // Inplace read-only ops.
  // These ops are implemented as inplace ops on operand 0.
  case HloOpcode::kAddDependency:
  + case HloOpcode::kBitcast:
  case HloOpcode::kBroadcast:
  case HloOpcode::kReshape:
  case HloOpcode::kReverse:
  @@ -569,7 +570,6 @@ HloInstructionDescription::HloInstructionDescription(
  }
  // Unimplemented ops.
  - case HloOpcode::kBitcast:
  case HloOpcode::kCollectivePermute:
  case HloOpcode::kFft:
  case HloOpcode::kRecv:
  