fix(core/vm,core/tracing): correct outdated comments

[gzliudan]

Proposed changes

Update stale comment names in the program and tracing packages to match the current APIs.

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• build: Changes that affect the build system or external dependencies
• ci: Changes to CI configuration files and scripts
• chore: Changes that don't change source code or tests
• docs: Documentation only changes
• feat: A new feature
• fix: A bug fix
• perf: A code change that improves performance
• refactor: A code change that neither fixes a bug nor adds a feature
• revert: Revert something
• style: Changes that do not affect the meaning of the code
• test: Adding missing tests or correcting existing tests

Impacted Components

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• Consensus
• Account
• Network
• Geth
• Smart Contract
• External components
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Checklist

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• This PR has sufficient test coverage (unit/integration test) OR I have provided reason in the PR description for not having test coverage
• Tested on a private network from the genesis block and monitored the chain operating correctly for multiple epochs.
• Provide an end-to-end test plan in the PR description on how to manually test it on the devnet/testnet.
• Tested the backwards compatibility.
• Tested with XDC nodes running this version co-exist with those running the previous version.
• Relevant documentation has been updated as part of this PR
• N/A

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[Copilot]

Pull request overview

Updates stale Go doc comments in VM program utilities and tracing enums so they match the current API names.

Changes:

• Fix CallCode doc comment label in core/vm/program.
• Fix Mstore doc comment label in core/vm/program.
• Fix GasChangeCallContractCreation2 doc comment label in tracing hooks.

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated no comments.

File	Description
core/vm/program/program.go	Aligns method doc comments (CallCode, Mstore) with actual exported API names.
core/tracing/hooks.go	Aligns GasChangeCallContractCreation2 constant comment with the actual identifier.

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