chore(formatter): support --diff in example

[Dunqing]

Pass --diff to compare the formatted code to the input, which is very useful when you copy the Prettier output here to check if it is formatted as expected or for idempotency testing.

[Dunqing]

• fix(formatter): preserve trailing comments before the semicolon in class methods without a body #18446
• chore(formatter): support --diff in example #18443 👈 (View in Graphite)
• chore(tasks): unify printing differences for mismatch code #18441
• chore(prettier_conformance): improve the information that is shown in filter #18439
• refactor(tasks): improve terminal diff output with context lines #18437
• main

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[codspeed-hq]

Merging this PR will not alter performance

✅ 42 untouched benchmarks
⏩ 3 skipped benchmarks¹

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_{Comparing 01-23-chore_formatter_support_--diff_in_example (0eb984a) with 01-23-chore_tasks_unify_printing_differences_for_mismatch_code (9cf4b23)}

Footnotes

1. 3 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. ↩

[Boshen]

Merge activity

• Jan 23, 11:54 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 25, 7:02 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 26, 5:35 AM UTC: Boshen added this pull request to the Graphite merge queue.
• Jan 26, 5:41 AM UTC: Merged by the Graphite merge queue.

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