method refs: check first parameter if it could be a receiver for varargs methods (IDEA-127506)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/lambda/newMethodRef/IDEA127506.java

@@ -0,0 +1,24 @@
+import java.util.List;
+import java.util.Set;
+import java.util.stream.Stream;
+
+class Validator {
+  static boolean thereAreConstraintViolationsIn1(final Stream<Object> objectStream, Validator validator) {
+    Stream<Set<List<Object>>> rStream = objectStream
+      .map(validator::validate);
+    return rStream
+      .flatMap(set -> set.stream())
+      .findAny()
+      .isPresent();
+  }
+
+  static void thereAreConstraintViolationsIn(final Stream<Object> objectStream, Validator validator) {
+    Stream<Set<List<Object>>> rStream = objectStream.map(validator ::validate);
+
+    Stream<Set<List<Object>>> lStream = objectStream.map((a) -> validator.validate(a));
+  }
+
+  <T> Set<List<T>> validate(T var1, Class<?> ... var2) {
+    return null;
+  }
+}