Description

nonisolated keyword seems to serve no purpose next to actor. By nature, they are contradictory and there is no clear indication of how it will behave.

This was behaving correctly (with a compilation error) in 6.03 example, but started compiling from 6.1.

Reproduction

nonisolated actor Counter {

    var counter = 0

    func increment() {
        counter += 1
    }
}

Expected behavior

nonisolated actor MyActor {} Should produce a compilation error.

Environment

swiftc 6.1+

Additional information

No response