new inference: site substitution from remembered properties (IDEA-132417)

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

@@ -0,0 +1,51 @@
+
+import java.util.List;
+import java.util.Optional;
+import java.util.function.Function;
+import java.util.function.Supplier;
+import java.util.stream.Stream;
+
+class Test {
+  public static class Thing {
+    public Integer toPresenter() {
+      return 1;
+    }
+  }
+
+  public <U> void map1(Function<Object, U> mapper) {}
+
+  private  void getPresentersFailure( final Stream<Thing> stream) {
+    map1((roles) -> {
+      return stream.map(Thing::toPresenter);
+    });
+  }
+
+}
+
+class Test1 {
+  public interface Convertable {
+    ThingPresenter toPresenter();
+  }
+
+  public static class Thing implements Convertable {
+    @Override
+    public ThingPresenter toPresenter() {
+      return new ThingPresenter("thing");
+    }
+  }
+
+  public static class ThingPresenter {
+    public String value;
+    public ThingPresenter(String value) { this.value = value; }
+  }
+
+  private static Stream<ThingPresenter> getPresentersFailure(Supplier<Optional<List<Thing>>> thingSupplier) {
+    Optional<List<Thing>> personRoles = thingSupplier.get();
+    return personRoles.map(roles -> roles.stream().map(Thing::toPresenter)).get();
+  }
+
+  private static Stream<ThingPresenter> getPresentersWorking(Supplier<Optional<List<Thing>>> thingSupplier) {
+    Optional<List<Thing>> personRoles = thingSupplier.get();
+    return personRoles.map(roles -> roles.stream().map(t -> t.toPresenter())).get();
+  }
+}