feat(linter/no-unused-vars): add fixer to remove unused catch bindings

[DonIsaac]

What This PR Does

Adds an safe-suggestion autofix to no-unused-vars for deleting unused catch bindings.

try {
  // ...
} catch (e) {
  console.error('oops')
}

// fixes into
try {
  // ...
} catch {
  console.error('oops')
}

TODO

• check for comments
• [ ] use memchr for SIMD OOS, thinking of making another PR to do this

[codspeed-hq]

CodSpeed Performance Report

Merging #17567 will not alter performance

_{Comparing DonIsaac:don/linter/feat/nuv-fix-unused-catch-bindings (7fa1990) with main (5f189f8)}

Summary

✅ 4 untouched
⏩ 41 skipped¹

Footnotes

1. 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. ↩

[camc314]

👋 Hello again!

[camc314]

Thank you!

[Copilot]

Pull request overview

This PR adds an autofix feature to the no-unused-vars linter rule for removing unused catch bindings. When a catch parameter is declared but never used, the fixer will safely remove it by transforming catch (e) { } into catch { }.

Key changes:

• Added find_prev_token_from helper method to search backwards for tokens while skipping comments
• Implemented autofix logic for unused catch parameters that deletes the parentheses and parameter
• Added comprehensive test coverage for various scenarios including different spacing, comments, TypeScript type annotations, and destructuring patterns

Reviewed changes

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

File	Description
crates/oxc_linter/src/context/mod.rs	Added find_prev_token_from helper method to search backwards for tokens, complementing the existing find_next_token_from method
crates/oxc_linter/src/rules/eslint/no_unused_vars/mod.rs	Implemented autofix logic for CatchParameter that finds and removes the surrounding parentheses and unused parameter
crates/oxc_linter/src/rules/eslint/no_unused_vars/tests/oxc.rs	Added 15 test cases covering various scenarios and enabled fix expectations for the catch parameter tests

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