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They're not the same. `Any.Type` is the type of all types that conform to `Any`, whereas `Parameter.Type` is `Any.Protocol`, which is just the type `Any` itself. The syntax is a bit unfortunate.

Jessy (JIRA User) do you have a specific example where you were trying to use this and it didn't work? Maybe we can improve the diagnostic for that case to explain the difference.

Comment by Jessy Catterwaul (JIRA)

Sorry, maybe I got it wrong. Here's the simplest example of the breaking change:

```swift
struct Error: Swift.Error { }
func succeed<Source, Cast>(if _: Source.Type, is _: Cast.Type) throws {
guard Source.self is Cast.Type else {
throw Error()
}
}

protocol Protocol { }
final class Class: Protocol { }

// These succeed in Xcode 11 but fail in Xcode 12.
try? succeed(if: Class.self, is: Protocol.self)
try? succeed(if: String.self, is: Any.self)
```

What is the real issue? Do you need a new bug report? Feel free to edit this one's title.

Jessy (JIRA User) I've reopened the bug report. I tried reproducing the issue with v2 of the playground on Xcode 11 beta 7 and Xcode 12 beta 4 and got a success for both of them.

Could you give more precise Xcode versions? Alternatively, if you could share the output of `xcrun swiftc --version` for each Xcode, that would help.

Comment by Jessy Catterwaul (JIRA)

Xcode 12 beta 5 and 6 is where I noticed the problem. Here's what I've got in beta 6: Apple Swift version 5.3 (swiftlang-1200.0.28.1 clang-1200.0.30.1)