fix(formatter): fix 4 prettier conformance tests

[Boshen]

No description provided.

[Copilot]

Pull request overview

This PR fixes prettier conformance issues in the JavaScript formatter, improving compatibility from 96.85% to 97.50% (5 additional tests passing).

Changes:

• Improved comment handling for empty statements in loop bodies
• Fixed sequence expression formatting in return/throw statements with leading comments
• Enhanced let identifier parenthesization logic for statement context
• Optimized ASI protection to avoid unnecessary semicolons for keyword expressions

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
tasks/prettier_conformance/snapshots/prettier.js.snap.md	Updates test results showing 5 more passing tests and improved match ratios for several others
crates/oxc_formatter/src/utils/statement_body.rs	Adds space before empty statements with leading comments
crates/oxc_formatter/src/print/return_or_throw_statement.rs	Adds inner parentheses for sequence expressions with leading comments
crates/oxc_formatter/src/print/mod.rs	Optimizes ASI protection for keyword expressions and removes redundant comment handling
crates/oxc_formatter/src/parentheses/expression.rs	Rewrites let identifier parenthesization logic with comprehensive tree traversal

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[codspeed-hq]

Merging this PR will not alter performance

✅ 38 untouched benchmarks
⏩ 7 skipped benchmarks¹

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_{Comparing prettier-conformance (132253a) with main (f69b6da)}

Footnotes

1. 7 benchmarks were skipped, so the baseline results were used instead. If they were deleted from the codebase, click here and archive them to remove them from the performance reports. ↩

[Dunqing]

Needs to run cargo coverage formatter

[Boshen]

Merge activity

• Jan 16, 6:51 AM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Jan 16, 6:51 AM UTC: Boshen added this pull request to the Graphite merge queue.
• Jan 16, 6:57 AM UTC: Merged by the Graphite merge queue.