Runtime support for Swift Interop in .NET 10

[kotlarmilos]

Overview

This issue is a follow-up to https://github.com/dotnet/runtime/issues/93631 and tracks the progress of runtime support required for Swift interop in .NET 10. The exact scope of work is defined by the use cases.

The list of tasks will be updated as we identify new runtime support requirements.

Tasks:

• [ ] https://github.com/dotnet/runtime/issues/100896
• [ ] Swift lowering support
  • [x] https://github.com/dotnet/runtime/issues/107946
  • [ ] https://github.com/dotnet/runtime/issues/107620
  • [ ] Add cache that maps structs to computed lowering to eliminate repeated runs of lowering algorithm
• [ ] SwiftSelf<T> support
  • [ ] Investigate why ARGLOADA should require a pointer-like type
  • [ ] Lower inner type instead of generic
  • [ ] https://github.com/dotnet/runtime/pull/108547
  • [ ] https://github.com/dotnet/runtime/issues/108855

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