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/SafeCallOnSuperReceiver.fir.kt

@@ -6,6 +6,6 @@ open class A {
 
 class B : A() {
     fun g() {
-        super?.f()
+        super?.<!UNRESOLVED_REFERENCE!>f<!>()
     }
-}
+}