redundant cast: ensure cast type compared with ground type (IDEA-174369)

remove attempts to emulate that and reuse getGroundTargetType api

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/redundantCast/GroundTargetTypeDiffersFromCastType.java

@@ -0,0 +1,18 @@
+import java.util.HashMap;
+import java.util.Map;
+
+interface A8<A1, A2> {
+    A2 a(A1 a1);
+}
+
+interface B<B1, B2> {
+    B2 b(B1 b1);
+}
+
+class Bug {
+    <T1, T2> void bug(B<T1, T2> b) {
+        Map<String, A8<?, T2>> m = new HashMap<>();
+        // replace with lambda here
+        m.put("", (A8<T1, T2>) t1 -> b.b(t1));
+    }
+}