FIR: Add FirVisibilityQualifierChecker

compiler/testData/diagnostics/tests/imports/ImportPrivateMemberFromOtherFile.fir.kt

@@ -21,6 +21,6 @@ import A.Nested.*
 import B.JC.JC1
 
 fun test() {
-    O1
+    <!INVISIBLE_REFERENCE!>O1<!>
     JC1()
-}
+}

compiler/testData/diagnostics/tests/imports/ImportPrivateMembersWithStar.fir.kt

@@ -28,5 +28,5 @@ fun testAccess() {
     E1
     NestedEntry
     A1()
-    A2
-}
+    <!INVISIBLE_REFERENCE!>A2<!>
+}