Updating java to kotlin convert to new language syntax

j2k/testData/fileOrElement/enum/colorEnum.kt

@@ -1,6 +1,6 @@
 package demo
 
-enum class MyEnum private (public val color: Int) {
+enum class MyEnum private constructor(public val color: Int) {
     RED : MyEnum(10)
     BLUE : MyEnum(20)
 }

j2k/testData/fileOrElement/enum/fieldsWithPrimaryPrivateConstructor.kt

@@ -1,4 +1,4 @@
-enum class Color private (public val code: Int) {
+enum class Color private constructor(public val code: Int) {
     WHITE : Color(21)
     BLACK : Color(22)
     RED : Color(23)

j2k/testData/fileOrElement/enum/primaryPrivateConstructor.kt

@@ -1,3 +1,3 @@
 package demo
 
-enum class Color private (public val code: Int)
+enum class Color private constructor(public val code: Int)