switch tests on new inference

(cherry picked from commit d2cbf3f2833104c3a0381059b0d6ef8ac0b3c94c)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newLambda/IDEA113573.java

@@ -0,0 +1,21 @@
+public class Tmp {
+  Integer toInt(Number num) {
+    return null;
+  }
+
+  Stream<Number> test() {
+    Stream<Number> numberStream = null;
+    Stream<Number> integerStream1 = numberStream.map(this::toInt);
+    Stream<Number> integerStream2 = numberStream.map(num -> toInt(num));
+
+    return numberStream.map(this::toInt);
+  }
+}
+
+interface Stream<T> {
+  <R> Stream<R> map(Function<? super T, ? extends R> mapper);
+}
+
+interface Function<I, R> {
+  R fun(I t);
+}