refactor(oxlint/lsp): check for FixedContentKind instead of guessing logic

[Sysix]

This PR refactors the fix_all_text_edit function in the LSP code actions module to use explicit type checking via FixedContentKind instead of relying on heuristics based on the length of the fixes array. This makes the code more maintainable and aligns it with the pattern already used in the apply_fix_code_actions function.

[Sysix]

• refactor(oxlint/lsp): check for FixedContentKind instead of guessing logic #19795 👈 (View in Graphite)
• main

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[Copilot]

Pull request overview

This PR refactors the fix_all_text_edit function in the LSP code actions module to use explicit type checking via FixedContentKind instead of relying on heuristics based on the length of the fixes array. This makes the code more maintainable and aligns it with the pattern already used in the apply_fix_code_actions function.

Changes:

• Replaced fragile length-based heuristic with explicit FixedContentKind enum checking
• Removed debug assertions that are no longer needed
• Used .find() to locate the first real fix (LintRule or UnusedDirective) instead of .next().unwrap()

[Sysix]

Merge activity

• Feb 27, 4:37 PM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Feb 27, 4:37 PM UTC: Sysix added this pull request to the Graphite merge queue.
• Feb 27, 4:45 PM UTC: Merged by the Graphite merge queue.