updates to integration test

Author: nikeokoronkwo

pkgs/swift2objc/test/integration/structs_and_properties_output.swift

@@ -14,6 +14,12 @@ import Foundation
 @objc public class MyStructWrapper: NSObject {
   var wrappedInstance: MyStruct
 
+  @objc public var mutatingProperty: Int {
+    get {
+      wrappedInstance.mutatingProperty
+    }
+  }
+
   @objc public var customGetterProperty: MyOtherStructWrapper {
     get {
       MyOtherStructWrapper(wrappedInstance.customGetterProperty)
@@ -80,12 +86,6 @@ import Foundation
     }
   }
 
-  @objc public var mutatingProperty: Int {
-    get {
-      wrappedInstance.mutatingProperty
-    }
-  }
-
   init(_ wrappedInstance: MyStruct) {
     self.wrappedInstance = wrappedInstance
   }