bump swift syntax

Author: joshuawright11

Package.swift

@@ -14,8 +14,8 @@ let package = Package(
         .library(name: "Papyrus", targets: ["Papyrus"]),
     ],
     dependencies: [
-        .package(url: "https://github.com/apple/swift-syntax", "509.0.0"..<"601.0.0-prerelease"),
-        .package(url: "https://github.com/pointfreeco/swift-macro-testing", from: "0.1.0"),
+        .package(url: "https://github.com/swiftlang/swift-syntax", from: "600.0.1"),
+        .package(url: "https://github.com/pointfreeco/swift-macro-testing", from: "0.5.0"),
     ],
     targets: [
 

PapyrusPlugin/Sources/Extensions/SwiftSyntax+Utilities.swift

@@ -29,7 +29,7 @@ extension FunctionDeclSyntax {
     }
 
     var effects: [String] {
-        [signature.effectSpecifiers?.asyncSpecifier, signature.effectSpecifiers?.throwsSpecifier]
+        [signature.effectSpecifiers?.asyncSpecifier, signature.effectSpecifiers?.throwsClause?.throwsSpecifier]
             .compactMap { $0 }
             .map { $0.text }
     }