diamonds: new expressions from return statements

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting7/DiamondMisc.java

@@ -3,4 +3,43 @@ import java.util.List;
 
 class Test {
   List<String> queue = new ArrayList<>();
-}
+}
+
+class DD {
+    P1<P<String>> l = new L<String>() {
+        @Override
+        void f() {
+        }
+    };
+
+    P1<P<String>> l1 = new L<>();
+
+    P1<P<String>> foo() {
+        return new L<>();
+    }
+
+    String s = "";
+}
+
+class L<K> extends P1<P<K>> {
+    void f() {
+    }
+}
+
+class P1<P1T> extends P<P1T> {
+}
+
+class P<PT> {
+}
+
+
+class Test1 {
+  void bar() {
+    foo(new FF<>());
+  }
+
+  void foo(F<F<String>> p) {}
+}
+
+class FF<X> extends F<X>{}
+class F<T> {}