use interface where possible: rebind type params (IDEA-139615)

java/java-tests/testData/refactoring/turnRefsToSuper/differentNumberOfParams/after/Client.java

@@ -0,0 +1,9 @@
+interface SuperBar<T> {
+    void f();
+}
+interface Bar<T, S> extends SuperBar<S> {}
+class Client {
+    void foo(SuperBar<Integer> b) {
+        b.f();
+    }
+}

java/java-tests/testData/refactoring/turnRefsToSuper/differentNumberOfParams/before/Client.java

@@ -0,0 +1,9 @@
+interface SuperBar<T> {
+    void f();
+}
+interface Bar<T, S> extends SuperBar<S> {}
+class Client {
+    void foo(Bar<String, Integer> b) {
+        b.f();
+    }
+}