Better tests

compiler/testData/diagnostics/tests/imports/ImportFromRootPackage.kt

@@ -1,7 +1,10 @@
 // FILE: rootPackage.kt
 class Klass {
+    class Nested
 }
 
+class NotImported
+
 fun function() = ""
 
 val property = ""
@@ -16,6 +19,7 @@ fun foo(): Klass {
 package pkg
 
 import Klass
+import Klass.Nested
 import function
 import property
 
@@ -23,3 +27,6 @@ fun foo(): Klass {
     function() + property
     return Klass()
 }
+
+val v: Nested = Nested()
+val x: <!UNRESOLVED_REFERENCE!>NotImported<!> = <!UNRESOLVED_REFERENCE!>NotImported<!>()