new inference: fresh variables

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newMethodRef/AdditionalConstraints3Level.java

@@ -0,0 +1,15 @@
+import java.util.List;
+import java.util.function.Function;
+
+abstract class Sample {
+  abstract <T> T       id (T t);
+  abstract <R> void    foo(List<R> c);
+  abstract <U> List<U> bar(Function<String, U> m);
+
+  {
+    foo(bar(this::id));
+    foo(bar(id(i -> i)));
+
+    Function<String, String> s = id(this::id);
+  }
+}