Change Signature: Property support

#KT-6599 Fixed

idea/testData/refactoring/changeSignature/ChangePropertyBefore.kt

@@ -0,0 +1,18 @@
+open class A {
+    open var <caret>p: Int = 1
+}
+
+class B: A() {
+    override var p: Int = 2
+}
+
+fun test() {
+    val t1 = A().p
+    A().p = 1
+
+    val t2 = B().p
+    B().p = 2
+
+    val t3 = J().getP()
+    J().setP(3)
+}