cl loadTypedef: ignore Cursor_TypeAliasTemplateDecl; tool test: TestLLVM_iterator_range

[xushiwei]

No description provided.

[codecov]

Codecov Report

❌ Patch coverage is 90.00000% with 1 line in your changes missing coverage. Please review.
✅ Project coverage is 86.77%. Comparing base (4fc9d90) to head (2313eef).
⚠️ Report is 21 commits behind head on main.

Files with missing lines	Patch %	Lines
cl/compile.go	66.66%	1 Missing ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main     #875      +/-   ##
==========================================
+ Coverage   86.65%   86.77%   +0.11%     
==========================================
  Files          22       22              
  Lines        1829     1830       +1     
==========================================
+ Hits         1585     1588       +3     
+ Misses        244      242       -2     

Flag	Coverage Δ
llgo-tests	86.77% <90.00%> (+0.11%)	⬆️

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[fennoai]

Review: template type-alias / using-declaration handling

This PR extends declaration handling to skip C++ template type aliases (Cursor_TypeAliasTemplateDecl), treat using-declarations as no-ops, and thread the enclosing class scope through loadTypedef so class-nested typedefs resolve template type parameters. It also upgrades log.Panicln/log.Println to ctx.panicf/ctx.logf, which is a nice improvement since those attach source position to diagnostics. The new TestLLVM_ADL fixture exercises exactly these paths (ADL.h contains function templates, a using-based adl_detail namespace, and template-dependent type aliases), and the near-empty out.go confirms they are correctly skipped.

Verified: scopeCtx is the first embedded field of classCtx, so the unsafe.Pointer cast in scope() is sound; passing nil scope from the top-level loadDecl call site is safe because lookupType guards with a nil-receiver loop. No correctness-blocking issues. Two minor polish items are noted inline.