refactor(test-tests): migrate frontier to shanghai gas costs to bytecode.gas_cost(fork)

[spencer-tb]

🗒️ Description

Migrate remaining Frontier, Berlin, TangerineWhistle, and Shanghai test files from manual fork.gas_costs() calculations to bytecode.gas_cost(fork).

This is a pure refactor with no functional change, all exact gas-boundary test fixtures produce identical output (verified via fixture hash comparison).

The benefit is maintainability: tests now declare intent via opcode metadata (e.g., address_warm=False, value_transfer=True) and delegate gas calculation to the framework's opcode_gas_map(), so future gas schedule changes only need updating in one place.

Files migrated:

• tests/frontier/opcodes/test_call.py
• tests/frontier/opcodes/test_call_and_callcode_gas_calculation.py
• tests/berlin/eip2929_gas_cost_increases/test_precompile_warming.py
• tests/berlin/eip2930_access_list/test_acl.py
• tests/tangerine_whistle/eip150_operation_gas_costs/test_eip150_selfdestruct.py
• tests/shanghai/eip3651_warm_coinbase/test_warm_coinbase.py
• tests/shanghai/eip3860_initcode/test_initcode.py

Pre-Berlin hardcoded values (700 for Byzantium-Berlin CALL, 40 for Homestead CALL) are kept where the framework's opcode_gas_map doesn't model pre-EIP-2929 costs. The remaining fork.gas_costs().G_CALL_STIPEND reference is intentional, it's a threshold check, not a gas cost. Per-word costs (G_INITCODE_WORD, G_KECCAK_256_WORD) are kept as-is since they aren't expressible via bytecode.gas_cost.

🔗 Related Issues or PRs

Partially fixes #2049.

✅ Checklist

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

  uvx tox -e 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).

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 86.07%. Comparing base (a82b1f6) to head (eca664f).
⚠️ Report is 1 commits behind head on forks/amsterdam.

Additional details and impacted files

@@               Coverage Diff                @@
##           forks/amsterdam    #2188   +/-   ##
================================================
  Coverage            86.07%   86.07%           
================================================
  Files                  599      599           
  Lines                39472    39472           
  Branches              3780     3780           
================================================
  Hits                 33977    33977           
  Misses                4862     4862           
  Partials               633      633           

Flag	Coverage Δ
unittests	86.07% <ø> (ø)

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[marioevz]

Awesome change, thanks! The comments are just to remove the wrapping of Bytecode since you can directly do Op.SSTORE(...).gas_cost(fork) for example.