Add UseOpcodeComputationCost option on debug API

[hqjang-pepper]

Proposed changes

• In the case of existing code, debug api didn't consider computation cost. Therefore, there was a case where the result of the api was different from the actual result.
• In addition, I added the UseOpcodeComputationCost option to true in the debug api .
• Through this, computation cost is calculated during vm execution in the debug api, which makes running the api works fine.

Before

> debug.traceBlockByNumber(67918569,{ tracer: 'fastCallTracer'})
Error: insufficient balance for transfer
    at web3.js:3276:20
    at web3.js:6450:15
    at web3.js:5214:36
    at <anonymous>:1:1

After

> debug.traceBlockByNumber(67918569,{ tracer: 'fastCallTracer'})
[ ...(too long, hid)
, {
    result: {
      calls: [{...}],
      from: "0xef03f7dd5f3dd5a3bd33722bbe8331a93f6072d6",
      gas: "0x162bc8",
      gasUsed: "0x97919",
      input: "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",
      output: "0x",
      time: "2.920421ms",
      to: "0xc6a2ad8cc6e4a7e08fc37cc5954be07d499e7654",
      type: "CALL",
      value: "0x0"
    },
    txHash: "0x0c82b17785aaa55e2503dd4bed9a0e2eae4ecd4a8b7f278a75239c5e3edb6cf8"
}, {
    result: {
      calls: [{...}],
      from: "0xef03f7dd5f3dd5a3bd33722bbe8331a93f6072d6",
      gas: "0x162bc8",
      gasUsed: "0x97919",
      input: "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",
      output: "0x",
      time: "2.932599ms",
      to: "0xc6a2ad8cc6e4a7e08fc37cc5954be07d499e7654",
      type: "CALL",
      value: "0x0"
    },
    txHash: "0x470d1341440f8dc6ea6ce7f1afd752d22279f11bc283e9b608564dd7192f513e"
}]

Before

> debug.traceTransaction("0x470d1341440f8dc6ea6ce7f1afd752d22279f11bc283e9b608564dd7192f513e")
Error: transaction 51edeac5682fa55ba70d00a3e340bb2894070968ce4617f9ff36dddee0b4b4f3 failed: <nil>
    at web3.js:3276:20
    at web3.js:6450:15
    at web3.js:5214:36
    at <anonymous>:1:1

After

> debug.traceTransaction("0x470d1341440f8dc6ea6ce7f1afd752d22279f11bc283e9b608564dd7192f513e")

..(hid)
, {
      depth: 1,
      gas: 832175,
      gasCost: 0,
      memory: ["0000000000000000000000000000000000000000000000000000000000000000", "0000000000000000000000000000000000000000000000000000000000000000", "0000000000000000000000000000000000000000000000000000000000000080", "0000000000000000000000000000000000000000000000000000000000000000", "5a3acc50000000000000000000000000cee8faf64bb97a73bb51e115aa89c17f", "fa8dd16700000000000000000000000000000000000000000000000000000000", "491039400000000000000000000000009eaefb09fe4aabfbe6b1ca316a3c36af", "c83a393f00000000000000000000000000000000000000000000000000000000", "3b9aca0000000000000000000000000000000000000000000000000000000000", "000000a000000000000000000000000000000000000000000000000000000000", "0000000200000000000000000000000000000000000000000000000000000000", "00000000000000000000000000000000c6a2ad8cc6e4a7e08fc37cc5954be07d", "499e765400000000000000000000000000000000000000000000000000000000"],
      op: "RETURN",
      pc: 385,
      stack: ["000000000000000000000000000000000000000000000000000000005a3acc50", "0000000000000000000000002eb02b608d77873ed301e573fe50cfc8045ec832", "0000000000000000000000000000000000000000000000000000000000000080", "0000000000000000000000000000000000000000000000000000000000000001", "0000000000000000000000000000000000000000000000000000000000000000", "0000000000000000000000000000000000000000000000000000000000000001", "0000000000000000000000000000000000000000000000000000000000000000", "0000000000000000000000000000000000000000000000000000000000000080"],
      storage: {
        2bd0a199149a1f75d087ebc63fe327df6c624265507362ab8c46f89060bc27b8: "00000000000000000000000000000000000000000054d015f29c99b6bf6b0f5a",
        38bcc0532a2f999be26eefda567dcb89ac257acf64f35e503ab7df226016c2bd: "0000000000000000000000000000000000000000000029bb11840da2d8f7af86",
        5d4839737e4841fcfc5c5fa1a861ba46b97057e41e0b2a6df0bd350b993c543c: "0000000000000000000000000000000000000000000217eb5ca13112403ffc76",
        bae2298232552307e0fdea6843c9e28129aa0c370aebc0b1656e0e413cbec3f1: "00000000000000000000000000000000000000000000023308396452912d351f"
      }
  }]
}

works well!

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Further comments

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[aidan-kwon]

Is this change necessary?

[hqjang-pepper]

The GetEVM method is only used in the DoCall method, which is only used in api_public_blockchain.go. The DoCall method is used for EstimateGas and EstimateComputationCost. Like issue #1035, this change was added to prevent the estimation value from being changed in advance by not adding this change.

[aidan-kwon]

DoCall can be called by three different APIs: Call, DoEstimateGas, EstimateComputationCost. Among them, DoEstimateGas, EstimateComputationCost already configure UseOpcodeComputationCost. The other API, Call, intentionally disabled UseOpcodeComputationCost to provide unlimited computation for view functions of smart contracts. Therefore, this change was not appropriate for the current API policy.

[hqjang-pepper]

I got the point. I deleted that line, so please take another look. Thanks.