KT-38027 Support Code Vision feature in Kotlin

idea/testData/codeInsight/codeVision/ClassPropertiesOverrides.kt

@@ -0,0 +1,23 @@
+// MODE: inheritors
+
+<# block [ 1 Inheritor] #>
+abstract class SomeClass {
+<# block [     1 Override] #>
+    abstract val someAbstractProperty: Int
+<# block [     2 Overrides] #>
+    open val nonAbstractProperty: Int = 10
+    open val notToBeOverriddenProperty: Int = 10
+}
+
+<# block [ 1 Inheritor] #>
+open class DerivedClassA : SomeClass() {
+    override val someAbstractProperty: Int = 5
+<# block [     1 Override] #>
+    override val nonAbstractProperty: Int = 15 // NOTE that DerivedClassB overrides both getter and setter but counted once
+}
+
+class DerivedClassB : DerivedClassA() {
+    override var nonAbstractProperty: Int = 15
+        get() = 20
+        set(value) {field = value / 2}
+}