Change Signature: val/var parameter support

idea/testData/refactoring/changeSignature/ChangeClassParameterAfter.kt

@@ -0,0 +1,21 @@
+open class A(open var <caret>s: String)
+
+class B(override var s: String): A(s)
+
+class C: A(0) {
+    override var s: String = 1
+}
+
+fun test() {
+    val t1 = A(0).s
+    A(0).s = 1
+
+    val t2 = B(0).s
+    B(0).s = 2
+
+    val t3 = C().s
+    C().s = 3
+
+    val t4 = J().getS()
+    J().setS(4)
+}