method refs: non-raw receiver type should influence collected constraints (IDEA-140002)

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

@@ -0,0 +1,25 @@
+import java.util.*;
+import java.util.function.BinaryOperator;
+import java.util.function.Supplier;
+import java.util.stream.Collector;
+
+class Test {
+  public static <T5> Collector<T5, Set<T5>, Set<T5>> foo(Supplier<Set<T5>> setConstructor,
+                                                         BinaryOperator<Set<T5>> rBinaryOperator) {
+
+    return Collector.of(setConstructor, Set<T5>:: add, rBinaryOperator);
+  }
+
+  public static <T> Collector<T, Set<T>, Set<T>> foo() {
+    final Supplier<Set<T>> setConstructor = HashSet::new;
+
+    return Collector.of(
+      setConstructor,
+      Set<T>::add,
+      (Set<T> s1, Set<T> s2) -> {
+        s1.addAll(s2);
+        return s1;
+      }
+    );
+  }
+}