redundant cast: do not mark casts to raw types redundant (IDEA-71419)

java/java-tests/testData/inspection/redundantCast/generics/RawCast/src/Test.java

@@ -1,3 +1,4 @@
+import java.util.List;
 import java.util.Map;
 import java.util.Properties;
 
@@ -9,3 +10,12 @@ public class Main {
         System.out.println(map);
     }
 }
+
+interface I {}
+class C implements I {}
+class U {
+  void foo() {
+    List<C> listOfC = null;
+    List<I> listOfI = (List) listOfC;
+  }
+}