refactor(oxlint/lsp): accept multiple files inside LintRunner

[Sysix]

The Isolated linter from the language server stills sends only one file at the moment, but everything is ready to accept multiple files at the same time :)

[Sysix]

• fix(oxlint/lsp): report diagnostics referencing another file #16715
• refactor(oxlint/lsp): accept multiple files inside LintRunner #16668 👈 (View in Graphite)
• refactor(oxlint/lsp): use fs as param in TsGoLintState, instead of source text #16667
• refactor(oxlint/lsp): IsolatedLintHandlerFileSystem is now a FxHashMap #16666
• main

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[codspeed-hq]

CodSpeed Performance Report

Merging #16668 will not alter performance

_{Comparing 12-09-refactor_oxlint_lsp_accept_multiple_files_inside_lintrunner_ (584400d) with main (652a2bf)¹}

Summary

✅ 4 untouched
⏩ 41 skipped²

Footnotes

1. No successful run was found on main (6b1a7b5) during the generation of this report, so 652a2bf was used instead as the comparison base. There might be some changes unrelated to this pull request in this report. ↩

2. 41 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. ↩

[Copilot]

Pull request overview

This PR refactors the linting infrastructure to accept multiple files in the LintRunner and TsGoLintState APIs. While the language server currently still sends only one file at a time, the underlying infrastructure now supports batch processing of multiple files, preparing for future enhancements.

Key Changes

• Modified LintRunner::run_source() to accept &[Arc<OsStr>] instead of a single file
• Updated TsGoLintState::lint_source() to handle multiple files by reading all sources into a map and processing them together
• Updated the isolated lint handler call site to use array syntax

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 2 comments.

File	Description
crates/oxc_linter/src/lint_runner.rs	Changed run_source() parameter from single file to files slice and updated calls to type-aware linter
crates/oxc_linter/src/tsgolint.rs	Refactored lint_source() to loop through multiple paths, reading all sources into an override map for batch processing
crates/oxc_language_server/src/linter/isolated_lint_handler.rs	Updated call site to wrap single path in array syntax

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[camc314]

Merge activity

• Dec 16, 11:44 AM UTC: The merge label '0-merge' was detected. This PR will be added to the Graphite merge queue once it meets the requirements.
• Dec 16, 11:44 AM UTC: camc314 added this pull request to the Graphite merge queue.
• Dec 16, 12:00 PM UTC: Merged by the Graphite merge queue.