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

#KT-11908 Fixed

idea/testData/codeInsight/generate/equalsWithHashCode/customAccessors.kt

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

idea/testData/codeInsight/generate/equalsWithHashCode/customAccessors.kt.after

@@ -0,0 +1,25 @@
+class Test {
+    var serial: String = ""
+        set(value) {
+            field = value.toUpperCase()
+        }
+    var name: String = ""
+    <caret>override fun equals(other: Any?): Boolean{
+        if (this === other) return true
+        if (other?.javaClass != javaClass) return false
+
+        other as Test
+
+        if (serial != other.serial) return false
+        if (name != other.name) return false
+
+        return true
+    }
+
+    override fun hashCode(): Int{
+        var result = serial.hashCode()
+        result = 31 * result + name.hashCode()
+        return result
+    }
+
+}