feat(spec-specs, tests): 8037 more 2d edge cases

[kclowes]

🗒️ Description

A couple more edge cases for the 2d gas calculation:

• test_tx_accepted_when_regular_gas_exactly_fits_block_limit_small: Regular gas inclusion boundary: accept a tx whose regular gas exactly equals remaining block budget (counterpart to existing rejection test; catches > vs >= off-by-one)
• updates test_failed_create_tx_refunds_intrinsic_new_account with an expectation around gas used in tx receipt

🔗 Related Issues or PRs

N/A.

✅ Checklist

• All: Ran fast static checks to avoid unnecessary CI fails, see also Code Standards and Enabling Pre-commit Checks:

  just static

• All: PR title adheres to the repo standard - it will be used as the squash commit message and should start type(scope):.
• All: Considered updating the online docs in the ./docs/ directory.
• All: Set appropriate labels for the changes (only maintainers can apply labels).
• Tests: Ran mkdocs serve locally and verified the auto-generated docs for new tests in the Test Case Reference are correctly formatted.
• Tests: For PRs implementing a missed test case, update the post-mortem document to add an entry the list.
• Ported Tests: All converted JSON/YML tests from ethereum/tests or tests/static have been assigned @ported_from marker.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
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Additional details and impacted files

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[fselmo]

I think we can combine the blockchain_test and state_test variants into one, which might be nicer. Lmk what you think? [mixed up my comments here, see my comment below!]

[kclowes]

@fselmo thank you! Rebased and combined. I'm not sure how much value the second test really adds any more, so happy to get rid of it, just lmk. Also switched one of the blockchain_tests to a state_test.

[fselmo]

lgtm, just pushed the DRY refactor we chatted about 🚀

[kclowes]

Changes LGTM! Thanks!