perf(language_server): avoid creating HashMap in Backend::did_change_watched_files

[Sysix]

The URI is only valid for one worker, so use a Vec to avoid transforming into a Vec later.

[Sysix]

• perf(language_server): return Diagnostic when relinting all files #14737
• perf(language_server): avoid creating HashMap in Backend::did_change_configuration #14736
• perf(language_server): avoid creating HashMap in Backend::did_change_watched_files #14735 👈 (View in Graphite)
• main

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[Copilot]

Pull Request Overview

This PR optimizes the Backend::did_change_watched_files method by replacing an inefficient HashMap-based approach with a more direct Vec-based collection for storing diagnostics, reducing unnecessary allocations and improving performance.

• Replaced papaya::HashMap with Vec for collecting diagnostics
• Simplified the logic flow by removing intermediate HashMap operations
• Eliminated redundant cloning and collection operations

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[camc314]

Merge activity

• Oct 17, 7:49 PM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Oct 17, 7:49 PM UTC: camc314 added this pull request to the Graphite merge queue.
• Oct 17, 7:53 PM UTC: Merged by the Graphite merge queue.