[CHORE] Updating to swift-syntax 601.0.1: compile-time version check

Author: mobrien-ghost

Package@swift-5.10.swift

@@ -20,7 +20,7 @@ let package = Package(
         ),
     ],
     dependencies: [
-        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "601.0.1"),
+        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "600.0.1"),
     ],
     targets: [
         .target(

Package@swift-5.8.swift

@@ -20,7 +20,7 @@ let package = Package(
         ),
     ],
     dependencies: [
-        
+        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "600.0.1"),
     ],
     targets: [
         .target(

Package@swift-5.9.swift

@@ -20,7 +20,7 @@ let package = Package(
         ),
     ],
     dependencies: [
-        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "601.0.1"),
+        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "600.0.1"),
     ],
     targets: [
         .target(

Package@swift-6.0.swift

@@ -20,7 +20,7 @@ let package = Package(
         ),
     ],
     dependencies: [
-        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "601.0.1"),
+        .package(url: "https://github.com/swiftlang/swift-syntax.git", from: "600.0.1"),
     ],
     targets: [
         .target(

Sources/SyntaxSparrow/Public/Semantics/Components/EntityType.swift

@@ -140,6 +140,7 @@ public enum EntityType: Equatable, Hashable, CustomStringConvertible {
         self = EntityType.parseType(typeSyntax)
     }
 
+    #if swift(>=6.1)
     /// Creates a new ``SyntaxSparrow/EntityType`` instance from a `GenericArgumentSyntax.Argument` node.
     public init(_ argument: GenericArgumentSyntax.Argument) {
         switch argument {
@@ -149,4 +150,5 @@ public enum EntityType: Equatable, Hashable, CustomStringConvertible {
             self = .empty
         }
     }
+    #endif
 }