Change Signature: Fix detection of conflicts in generic classes

idea/testData/refactoring/changeSignature/GenericConstructorBefore.kt

@@ -0,0 +1,14 @@
+open class C0<X>(val x: X) {}
+
+open class C1<T: Any> protected (val x1: T? = null, var x2: Double, x3: ((Int) -> Int)?) : C0<((Int) -> Int)?>(x3){
+    fun bar() {
+        val y1 = x1;
+        val y2 = x2;
+    }
+}
+class C2 : C1<Int>(1, 2.5, null<caret>) {
+    fun foo() {
+        var c = C1(2, 3.5, null);
+        c = C1(x1 = 2, x2 = 3.5, x3 = null);
+    }
+}