fix(engine): name an anonymous default export before its static elements

[IamYipi]

This Pull Request fixes the name of an anonymous class exported with export default AssignmentExpression when the class has a static name method.

export default (class { static name() { return 'name method'; } });
// C.name was the string "default" instead of the method

export default AssignmentExpression ; evaluates an anonymous function definition with NamedEvaluation and the argument "default". For a class, ClassDefinitionEvaluation calls SetFunctionName(F, "default") before it defines the static elements, so a static name method replaces the name. Boa compiled the expression first and then emitted SetFunctionName on the finished class, which overwrote the method.

It changes the following:

• The parser names the expression default with set_anonymous_function_definition_name, as it already does for every other NamedEvaluation site (variable declarations, assignments, property definitions, class fields). The name is then in place when the class is compiled.
• The bytecompiler no longer emits the late SetFunctionName for DefaultAssignmentExpression. The step comments now follow the spec.
• Adds test_default_export_named_evaluation to core/engine/tests/module.rs. It checks that anonymous functions, arrow functions and classes are still named default, and that a static name method replaces the name.

Test262 results for the full suite, compared with main using boa_tester compare: 2 tests fixed, no regressions.

test/language/module-code/eval-export-dflt-expr-cls-name-meth.js
test/language/expressions/dynamic-import/eval-export-dflt-expr-cls-name-meth.js

cargo fmt --all --check is clean. So is cargo clippy -p boa_parser -p boa_engine --all-features --all-targets with -D warnings.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	53,578	53,578	0
Passed	51,447	51,449	+2
Ignored	1,648	1,648	0
Failed	483	481	-2
Panics	0	0	0
Conformance	96.02%	96.03%	+0.00%

Fixed tests (2):

test/language/module-code/eval-export-dflt-expr-cls-name-meth.js (previously Failed)
test/language/expressions/dynamic-import/eval-export-dflt-expr-cls-name-meth.js (previously Failed)

Tested main commit: ef40c63283e1bb73f371d93372e9e95217a36945
Tested PR commit: eff4a463ec41dc1037a88968103c4538948bc409
Compare commits: ef40c63...eff4a46

[IamYipi]

Rebased on main: the Lint failure came from the Rust 1.99 clippy lints that #5552 fixed. cargo fmt --check and cargo clippy -D warnings on boa_engine, boa_parser and boa_ast pass on the rebased branch.

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 63.02%. Comparing base (6ddc2b4) to head (eff4a46).
⚠️ Report is 1064 commits behind head on main.

Additional details and impacted files

@@             Coverage Diff             @@
##             main    #5544       +/-   ##
===========================================
+ Coverage   47.24%   63.02%   +15.77%     
===========================================
  Files         476      536       +60     
  Lines       46892    60309    +13417     
===========================================
+ Hits        22154    38007    +15853     
+ Misses      24738    22302     -2436     

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