[FIR] Forbid creating abstract class instances via any qualified access

^KT-58938 Fixed

compiler/testData/diagnostics/tests/callableReference/function/abstractClassConstructors.fir.kt

@@ -6,7 +6,7 @@ enum class D
 
 fun main() {
     ::<!UNRESOLVED_REFERENCE!>A<!>
-    ::B
+    ::<!CREATING_AN_INSTANCE_OF_ABSTRACT_CLASS!>B<!>
     ::<!CALLABLE_REFERENCE_TO_ANNOTATION_CONSTRUCTOR!>C<!>   // KT-3465
     ::<!UNRESOLVED_REFERENCE!>D<!>
 }