Change to backing field fix is dropped because of deprecated syntax

idea/testData/quickfix/variables/changeToBackingField/bFRequired.kt

@@ -1,8 +0,0 @@
-// "Change reference to backing field" "true"
-class A() {
-    var a : Int
-    set(v) {}
-    init {
-        <caret>a = 1
-    }
-}

idea/testData/quickfix/variables/changeToBackingField/bFRequired.kt.after

@@ -1,8 +0,0 @@
-// "Change reference to backing field" "true"
-class A() {
-    var a : Int
-    set(v) {}
-    init {
-        <caret>$a = 1
-    }
-}

idea/testData/quickfix/variables/changeToBackingField/kt510.kt

@@ -1,8 +0,0 @@
-// "Change reference to backing field" "true"
-public open class Identifier() {
-    var field : Boolean
-    set(v) {}
-    init {
-        <caret>this.field = false;
-    }
-}

idea/testData/quickfix/variables/changeToBackingField/kt510.kt.after

@@ -1,8 +0,0 @@
-// "Change reference to backing field" "true"
-public open class Identifier() {
-    var field : Boolean
-    set(v) {}
-    init {
-        <caret>this.$field = false;
-    }
-}