[Merged by Bors] - Implement HTML comments and gate behind the annex-b feature

[jedel1043]

Small steps towards ES5 conformance.

This PR changes the following:

• Implements HTML comments parsing (<!--, -->).
• Gates the functionality behind a new annex-b feature for boa_parser.
• Renames strict_mode to strict to be consistent with Parser::set_strict.

[github-actions]

Test262 conformance changes

Test result	main count	PR count	difference
Total	94,781	94,781	0
Passed	71,489	71,507	+18
Ignored	17,824	17,824	0
Failed	5,468	5,450	-18
Panics	0	0	0
Conformance	75.43%	75.44%	+0.02%

Fixed tests (18):

test/annexB/built-ins/Function/createdynfn-html-open-comment-params.js [strict mode] (previously Failed)
test/annexB/built-ins/Function/createdynfn-html-open-comment-params.js (previously Failed)
test/annexB/built-ins/Function/createdynfn-html-open-comment-body.js [strict mode] (previously Failed)
test/annexB/built-ins/Function/createdynfn-html-open-comment-body.js (previously Failed)
test/annexB/built-ins/Function/createdynfn-html-close-comment-body.js [strict mode] (previously Failed)
test/annexB/built-ins/Function/createdynfn-html-close-comment-body.js (previously Failed)
test/annexB/built-ins/Function/createdynfn-html-close-comment-params.js [strict mode] (previously Failed)
test/annexB/built-ins/Function/createdynfn-html-close-comment-params.js (previously Failed)
test/annexB/language/comments/single-line-html-close-asi.js [strict mode] (previously Failed)
test/annexB/language/comments/single-line-html-close-asi.js (previously Failed)
test/annexB/language/comments/single-line-html-open.js [strict mode] (previously Failed)
test/annexB/language/comments/single-line-html-open.js (previously Failed)
test/annexB/language/comments/single-line-html-close-unicode-separators.js [strict mode] (previously Failed)
test/annexB/language/comments/single-line-html-close-unicode-separators.js (previously Failed)
test/language/module-code/early-strict-mode.js [strict mode] (previously Failed)
test/language/module-code/early-strict-mode.js (previously Failed)
test/language/module-code/parse-err-yield.js [strict mode] (previously Failed)
test/language/module-code/parse-err-yield.js (previously Failed)

[codecov]

Codecov Report

Merging #2817 (3ed574c) into main (2f580bb) will increase coverage by 0.06%.
The diff coverage is 74.01%.

@@            Coverage Diff             @@
##             main    #2817      +/-   ##
==========================================
+ Coverage   51.31%   51.38%   +0.06%     
==========================================
  Files         416      417       +1     
  Lines       41213    41306      +93     
==========================================
+ Hits        21149    21224      +75     
- Misses      20064    20082      +18     

Impacted Files	Coverage Δ
boa_engine/src/builtins/function/mod.rs	39.60% <0.00%> (+0.09%)	⬆️
boa_parser/src/lexer/comment.rs	89.74% <ø> (ø)
.../parser/expression/primary/class_expression/mod.rs	0.00% <0.00%> (ø)
boa_parser/src/parser/statement/block/mod.rs	73.52% <0.00%> (ø)
boa_parser/src/parser/statement/switch/mod.rs	75.00% <0.00%> (ø)
...xpression/primary/async_function_expression/mod.rs	60.31% <50.00%> (ø)
...pression/primary/async_generator_expression/mod.rs	59.74% <50.00%> (ø)
...ser/expression/primary/generator_expression/mod.rs	55.55% <50.00%> (ø)
boa_parser/src/parser/mod.rs	41.86% <50.00%> (ø)
boa_parser/src/lexer/mod.rs	79.59% <62.16%> (-6.97%)	⬇️
... and 19 more

... and 39 files with indirect coverage changes

Help us with your feedback. Take ten seconds to tell us how you rate us. Have a feature suggestion? Share it here.

[Razican]

Great work!

[raskad]

Looks very good. I think there are still some tests left that are not passing but let's get this merged and look at those after.

[raskad]

bors r+

[bors]

Pull request successfully merged into main.

Build succeeded:

• Build and Test (macos-latest)
• Build and Test (windows-latest)
• Coverage
• Misc