Fix conditional import parsing with access modifiers

[erichoracek]

Prevent sortImports from treating access-controlled declarations after an import as Swift 6 access-controlled imports. This keeps #if / #elseif import blocks intact when a branch-local declaration follows the import.

Could result in a change like this:

#if canImport(UIKit)
-import UIKit
-private struct Foo {}
-#elseif canImport(AppKit)
import AppKit
+import UIKit
private struct Foo {}
#endif

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.31%. Comparing base (e92eabf) to head (9f0efe1).
⚠️ Report is 1 commits behind head on develop.

Additional details and impacted files

@@             Coverage Diff             @@
##           develop    #2494      +/-   ##
===========================================
- Coverage    95.31%   95.31%   -0.01%     
===========================================
  Files          168      168              
  Lines        25381    25383       +2     
===========================================
+ Hits         24192    24193       +1     
- Misses        1189     1190       +1     

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[calda]

Thanks Eric!

[erichoracek]

Thanks! This is blocking our adoption of the most recent release, should I also do a PR against main?

[calda]

I can cut a release of the develop branch

[calda]

https://github.com/nicklockwood/SwiftFormat/releases/tag/0.61.0

[erichoracek]

Thanks so much!