Invalid "Classes cannot have non-final generic functions in embedded Swift" error

[TeamPuzel]

Description

There is a bug where despite the class being final the compiler does not let me use generics in the initializer. This can't be fixed by adding final as it seems to be disallowed on initializers. There appears to be a workaround, I made the initializer only create an empty texture and put the generics in a convenience initializer

Reproduction

public final class Texture {
    private let id: GLuint
    public var unit: GLuint

    public init(_ unit: GLuint = 0, image: some Drawable) { // Error
        var id: GLuint = 0
        glad_glGenTextures(1, &id)
        
        (...)
    }
    (...)
}

Expected behavior

This class is final and only being used for reference semantics. It should compile.

Environment

Apple Swift version 6.2-dev (LLVM 4930d5a55e7728b, Swift ec5bee8bc94399a)
Target: arm64-apple-macosx15.0

Additional information

No response