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

idea/testData/refactoring/changeSignature/GenericsWithOverridesBefore.kt

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