Add support for BUILD_LIBRARY_FOR_DISTRIBUTION=YES

[mikehouse]

Hi. We've built the library with one version of swift compiler (Xcode 15.1/15.2) using BUILD_LIBRARY_FOR_DISTRIBUTION=YES and linked the library to a project that uses Xcode 15.3. After adding the library the project cannot be compiled anymore. The reason is names collision because of Swift compiler bug swiftlang/swift#56573. We fixed it by modifying private.swiftinterface file after it being built.

I think this bug is a reason for this issue #183