Change Signature: Add support of type parameter substitutions in overriding members

idea/testData/refactoring/changeSignature/GenericsWithOverridesAfter.kt

@@ -0,0 +1,23 @@
+class U<A>
+
+trait T<A, B> {
+    fun foofoofoo<C>(a: List<C>, b: A?, c: U<B>): U<C>?
+}
+
+abstract class T1<X, Y> : T<U<X>, U<Y>> {
+    override fun <C> foofoofoo(a: List<C>, b: U<X>?, c: U<U<Y>>): U<C>? {
+        throw UnsupportedOperationException()
+    }
+}
+
+abstract class T2<X> : T1<X, String>() {
+    override fun <C> foofoofoo(a: List<C>, b: U<X>?, c: U<U<String>>): U<C>? {
+        throw UnsupportedOperationException()
+    }
+}
+
+class T3 : T2<Any>() {
+    override fun foofoofoo<D>(a: List<D>, b: U<Any>?, c: U<U<String>>): U<D>? {
+        throw UnsupportedOperationException()
+    }
+}