reject functional expressions as conditional condition (IDEA-184667)

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

@@ -0,0 +1,5 @@
+class Test {
+  {
+    boolean condition = <error descr="boolean is not a functional interface">() -> {}</error> ? true : false;
+  }
+}