fix(tasks/prettier_conformance): Skip tests which cannot parse

[leaysgur]

If the parser reports a syntax error, simply skip the test.
oxfmt already reports error for this case.

By this change, tests containing unsupported syntax such as stage 2, 3 will be automatically ignored.

I'll add notes in the line comments to explain what they were like.

[leaysgur]

• fix(tasks/prettier_conformance): Skip tests which cannot parse #15025 👈 (View in Graphite)
• refactor(formatter): Export unified way to get_parse_options #15027
• main

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[Copilot]

Pull Request Overview

This PR implements automatic skipping of tests that fail to parse, eliminating the need to manually maintain an ignore list for tests with unsupported syntax (e.g., stage 2, 3 features). When the parser encounters a syntax error, the test is now silently skipped rather than failing.

Key Changes:

• Modified run_oxc_formatter to return Option<String> and bail early when parsing errors occur
• Removed explicit ignore list entries for stage 3 features that are now automatically skipped
• Updated test results showing improved pass rates (JS: 87.58% → 89.85%, TS: 88.96% → 89.80%)

Reviewed Changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
tasks/prettier_conformance/src/lib.rs	Updated run_oxc_formatter to return Option<String> and skip tests with parse errors; refactored calling code to handle the new return type
tasks/prettier_conformance/src/ignore_list.rs	Removed manual ignore entries for stage 3 features that are now automatically skipped
tasks/prettier_conformance/snapshots/prettier.ts.snap.md	Updated snapshot showing improved TypeScript test pass rate
tasks/prettier_conformance/snapshots/prettier.js.snap.md	Updated snapshot showing improved JavaScript test pass rate

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[Dunqing]

Merge activity

• Oct 28, 9:25 AM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Oct 28, 9:26 AM UTC: Dunqing added this pull request to the Graphite merge queue.
• Oct 28, 9:32 AM UTC: Merged by the Graphite merge queue.