FIR: Implement FE 1.0 semantics for super unqualified calls

See original logic at org.jetbrains.kotlin.types.expressions.unqualifiedSuper.UnqualifiedSuperKt#resolveUnqualifiedSuperFromExpressionContext

^KT-39070 Fixed
^KT-39599 Related

compiler/testData/diagnostics/tests/enum/kt8972_cloneNotAllowed.fir.kt

@@ -2,6 +2,6 @@
 enum class E : Cloneable {
     A;
     override fun clone(): Any {
-        return super.<!AMBIGUITY!>clone<!>()
+        return super.<!UNRESOLVED_REFERENCE!>clone<!>()
     }
 }