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>
+}