refactor: extract shared getBinaryLogicalOperator helper

[github-actions]

🤖 This PR was created by Repo Assist, an automated AI assistant.

What

Extracts the byte-for-byte identical getBinaryOperator private method that was duplicated across csharpAnalyzer.ts, goAnalyzer.ts, javaAnalyzer.ts, and rustAnalyzer.ts into a single shared getBinaryLogicalOperator export in complexityHelpers.ts.

Why

All four analyzers had the exact same logic (read child(1) of a binary_expression node, check if its type is && or ||). This is the same class of duplication the repo already eliminated for isOutermostInSameOperatorChain in a previous pass — this helper was simply missed. Consolidating it in one place reduces maintenance surface and keeps the four analyzers consistent by construction.

Trade-offs

Pure refactor, no behavior change. One previously-covered defensive if (!operatorNode) branch became structurally unreachable from all four call sites combined (tree-sitter always emits an operator token for a valid binary_expression), so it now carries a /* c8 ignore next */ annotation consistent with the existing pattern used for similar unreachable defensive branches elsewhere in this file.

Test Status

• npm run compile: ✅ clean
• npm run lint: ✅ clean
• npm run test:unit: ✅ 241/241 passing, coverage 98.76% stmts / 95.67% branches / 99.08% funcs / 98.76% lines (all above the configured .c8rc.json thresholds of 95/88/97/95)
• npm run test:vscode (integration): not run — blocked by sandboxed network (getaddrinfo EAI_AGAIN update.code.visualstudio.com), same known limitation as all previous Repo Assist runs in this environment.

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 98.19%. Comparing base (3296a56) to head (a4f05de).
⚠️ Report is 1 commits behind head on main.

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #597      +/-   ##
==========================================
+ Coverage   98.11%   98.19%   +0.08%     
==========================================
  Files          12       12              
  Lines        3931     3885      -46     
  Branches      451      440      -11     
==========================================
- Hits         3857     3815      -42     
+ Misses         74       70       -4     

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[Copilot]

🟡 Changes recommended

The C# analyzer now has misleading stale JSDoc attached to getComplexityReason.

Once you've addressed the issues Copilot identified, you can request another Copilot review.

Pull request overview

Centralizes logical binary-operator extraction without changing analyzer behavior.

Changes:

• Adds shared getBinaryLogicalOperator.
• Updates four analyzers and removes duplicate methods.
• Leaves stale C# JSDoc requiring cleanup.

File summaries

File	Description
complexityHelpers.ts	Adds shared helper.
csharpAnalyzer.ts	Uses helper; removes duplicate.
goAnalyzer.ts	Uses helper; removes duplicate.
javaAnalyzer.ts	Uses helper; removes duplicate.
rustAnalyzer.ts	Uses helper; removes duplicate.

Review details

• Files reviewed: 5/5 changed files
• Comments generated: 1
• Review effort level: Balanced

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[askpt]

@copilot Fix the code for all comments in this review thread.

When a review comment includes a suggested change, apply the suggestion exactly.

Do not make changes beyond what is described in the linked review thread.

[Copilot]

@copilot Fix the code for all comments in this review thread.

When a review comment includes a suggested change, apply t...

Addressed in commit a4f05de by removing the stale JSDoc lines so getComplexityReason now has a single correct doc block.