Add sort order option for sorted imports

[ayushnagpal570-ai]

Summary

• add a sort_order option to sorted_imports with case_insensitive as the existing default and lexicographic as the new alternative
• thread the configured sort order through linting and autocorrection
• cover the new ordering mode in rule examples and the default configuration fixture

Closes #4810.

Tests

• swift test --filter SortedImportsRuleGeneratedTests
• swift test --filter RuleConfigurationTests
• swift test --filter IntegrationTests
• git diff --check

[SwiftLintBot]

	19 Messages
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[SimplyDanny]

Thank you for the contribution, @ayushnagpal570-ai!

I wonder if case_insensitive and lexicographic are the clearest pair of names here. lexicographic is technically accurate, but it doesn’t feel parallel with case_insensitive, so the distinction may be a little harder to grasp from the config alone. If the practical difference is just whether case affects ordering, would case_insensitive/case_sensitive be clearer and more consistent?

[SimplyDanny]

I don't think this should be a property of an import, but of the comparison. What if I set one style for one import and another one for the other? That doesn't happen here, but the API would suggest that it would work ...