pull up/push down: type parameters substitution should modify member copy (IDEA-53496)

java/java-tests/testData/refactoring/pullUp/GenericsInAbstractMethod_after.java

@@ -0,0 +1,8 @@
+public abstract class Parent<S> {
+    abstract void method(S t);
+}
+
+class Child<T> extends Parent<T> {
+   @Override
+   void method(T t){}
+}