diagnose-api-breaking-changes false positive when switching to opaque parameter from equivalent generic function

[dnadoba]

Going from a generic function like this:

public struct Foo { 
    public init<Numbers: Sequence>(_ numbers: Numbers) where Numbers.Element == Int {}
}

to an equivalent function but using opaque parameters like this

public struct Foo {
    public init(_ numbers: some Sequence<Int>) {}
}

will result in a false positive by diagnose-api-breaking-changes:

1 breaking change detected in MyLibrary:
  💔 API breakage: constructor Foo.init(_:) has generic signature change from <Numbers where Numbers : Swift.Sequence, Numbers.Element == Swift.Int> to 

Note that the output is also missing the new generic signature.

Tested with:

% swift --version                                  
swift-driver version: 1.87.1 Apple Swift version 5.9 (swiftlang-5.9.0.128.106 clang-1500.0.40.1)
Target: arm64-apple-macosx14.0

and also with Swift 5.8.1 on Ubuntu.

Reproduce

Either use the code snipped from above our downloads the attached Swift Package (MyLibrary.zip) and run:

swift package diagnose-api-breaking-changes 1.0.0

[dnadoba]

rdar://116109255