ensure array is not accepted as functional interface (IDEA-172048)

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

@@ -0,0 +1,10 @@
+
+import java.util.concurrent.Callable;
+
+class Test {
+  public static <T> void execute(Callable<T>[] cmds) { }
+
+  public static void main(String[] args) throws Exception{
+    execute(<error descr="Callable<T>[] is not a functional interface">() -> null</error>);
+  }
+}