method references: do not prefer varargs from first search (IDEA-182018)

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

@@ -0,0 +1,24 @@
+import java.util.function.BinaryOperator;
+
+class Test {
+  static class Base<T> {
+    Child<T> prepend(Child<T> other) {
+      return null;
+    }
+  }
+
+  static class Child<T> extends Base<T> {
+    @SafeVarargs
+    final Child<T> prepend(T... args) {
+      return this;
+    }
+
+    Child<T> prepend(T arg) {
+      return this;
+    }
+  }
+
+  public static void main(String[] args) {
+    BinaryOperator<Child<String>> prepend = Child::prepend;
+  }
+}