IDEA-98936 (classes in default (unnamed) package cannot be referenced from other packages)

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/importDefaultPackage/Test.java

@@ -1,4 +1,5 @@
 public class Test {
   public Test(int i) {
+    new x();
   }
 }

java/java-tests/testData/codeInsight/daemonCodeAnalyzer/advHighlighting/importDefaultPackage/x.java

@@ -0,0 +1 @@
+class x { }