Memberwise initializer not recognized in #Playground

[ethanhuang13]

For some reason, @Generable type's memberwise init is not recognized in #Playground.

Environment:

• macOS 26.2
• Xcode 26.2

Code to reproduce:

import AnyLanguageModel
import Playgrounds

@Generable
struct FooBar {
  var foo: String
  var bar: Int
}

let fooBar = FooBar(foo: "foo", bar: 0) // OK

func globalFunc() {
  let fooBar = FooBar(foo: "foo", bar: 0) // OK
}

#Playground {
  let fooBar = FooBar(foo: "foo", bar: 0) // Cannot convert value of type 'String' to expected argument type 'GeneratedContent'
}

[mattt]

Hi @ethanhuang13. Thank you for reporting this. My understanding is that this is an inherent limitation to Swift macros. I added some docs and code coverage here: #81