J2K: get/set-methods converted to properties (but lot of TODOs left)

j2k/testData/fileOrElement/callChainExpression/libraryMethodCallFromInstance-settings.kt

@@ -4,18 +4,19 @@ internal class Library {
     fun call() {
     }
 
-    fun getString(): String? {
-        return ""
-    }
+    val string: String?
+        get() {
+            return ""
+        }
 }
 
 internal class User {
     fun main() {
         val lib: Library = Library()
         lib.call()
-        lib.getString()!!.isEmpty()
+        lib.string!!.isEmpty()
 
         Library().call()
-        Library().getString()!!.isEmpty()
+        Library().string!!.isEmpty()
     }
 }