Fix visibility checker for import.

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

@@ -0,0 +1,28 @@
+// MODULE: m1
+// FILE: k1.kt
+package k
+
+private class KPrivate
+internal class KInternal
+public class KPublic
+
+class A {
+    protected class KProtected
+}
+
+// FILE: k2.kt
+package k2
+
+import k.<!INVISIBLE_REFERENCE!>KPrivate<!>
+import k.KInternal
+import k.KPublic
+import k.A.KProtected
+
+// MODULE: m2(m1)
+// FILE: k3.kt
+package k3
+
+import k.<!INVISIBLE_REFERENCE!>KPrivate<!>
+import k.<!INVISIBLE_REFERENCE!>KInternal<!>
+import k.KPublic
+import k.A.KProtected