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Iceman
@swift-6.2.3 print(Builtin._isOptional(Int.self)) print(Builtin._isOptional(Int?.self)) print(Builtin._isOptional((() -> Void)?.self))
swift62 BOT 2/16/2026 12:54 AM
exit status 1 with stderr:<stdin>:1:7: error: cannot find 'Builtin' in scope 1 | print(Builtin._isOptional(Int.self)) | `- error: cannot find 'Builtin' in scope 2 | print(Builtin._isOptional(Int?.self)) 3 | print(Builtin._isOptional((() -> Void)?.self)) <stdin>:2:7: error: cannot find 'Builtin' in scope 1 | print(Builtin._isOptional(Int.self)) 2 | print(Builtin._isOptional(Int?.self)) | `- error: cannot find 'Builtin' in scope 3 | print(Builtin._isOptional((() -> Void)?.self)) 4 | <stdin>:3:7: error: cannot find 'Builtin' in scope 1 | print(Builtin._isOptional(Int.self)) 2 | print(Builtin._isOptional(Int?.self)) 3 | print(Builtin._isOptional((() -> Void)?.self)) | `- error: cannot find 'Builtin' in scope 4 |