Code Insight: Allow properties with custom setters to be used in generated equals/hashCode/toString

#KT-11908 Fixed

idea/testData/codeInsight/generate/toString/multipeTemplates/customAccessors.kt

@@ -0,0 +1,9 @@
+// GENERATOR: MULTIPLE_TEMPLATES
+class Test {
+    var serial: String = ""
+        set(value) {
+            field = value.toUpperCase()
+        }
+    var name: String = ""
+    <caret>
+}

idea/testData/codeInsight/generate/toString/multipeTemplates/customAccessors.kt.after

@@ -0,0 +1,15 @@
+// GENERATOR: MULTIPLE_TEMPLATES
+class Test {
+    var serial: String = ""
+        set(value) {
+            field = value.toUpperCase()
+        }
+    var name: String = ""
+    <caret>override fun toString(): String{
+        return "Test(" +
+                "serial='$serial'," +
+                "name='$name'" +
+                ")"
+    }
+
+}

idea/testData/codeInsight/generate/toString/singleTemplate/customAccessors.kt

@@ -0,0 +1,8 @@
+class Test {
+    var serial: String = ""
+        set(value) {
+            field = value.toUpperCase()
+        }
+    var name: String = ""
+    <caret>
+}

idea/testData/codeInsight/generate/toString/singleTemplate/customAccessors.kt.after

@@ -0,0 +1,11 @@
+class Test {
+    var serial: String = ""
+        set(value) {
+            field = value.toUpperCase()
+        }
+    var name: String = ""
+    <caret>override fun toString(): String{
+        return "Test(serial='$serial', name='$name')"
+    }
+
+}