Include _GenerateSwiftFormat in buildOnlyTests

[TTOzzi]

No description provided.

[bnbarham]

swift-format doesn't depend on _GenerateSwiftFormat so this shouldn't be needed. We also never build generate-swift-format in cmake, so technically the added CMakeLists.txt isn't needed either. We could add an extra in generate-swift-format so that it is buildable from cmake as well, but that's not the PR testing issue.

The PR testing issue is that we set SWIFTFORMAT_BUILD_ONLY_TESTS which then does this:

if buildOnlyTests {
  products = []
  targets = targets.compactMap { target in
    guard target.isTest || target.name == "_SwiftFormatTestSupport" else {
      return nil
    }
    target.dependencies = target.dependencies.filter { dependency in
      if case .byNameItem(name: "_SwiftFormatTestSupport", _) = dependency {
        return true
      }
      return false
    }
    return target
  }
}

That needs to be updated to allow _GenerateSwiftFormat as well

[TTOzzi]

Ah thanks for letting me know. I wasn't aware of this 🙇
I’ve updated it as you suggested.

[bnbarham]

Thanks, LGTM!

[bnbarham]

Thanks @TTOzzi!