Move FunctionClassKind utils to :core.descriptors.common

compiler/fir/tree/src/org/jetbrains/kotlin/fir/FirRenderer.kt

@@ -5,7 +5,6 @@
 
 package org.jetbrains.kotlin.fir
 
-import org.jetbrains.kotlin.builtins.functions.BuiltInFictitiousFunctionClassFactory
 import org.jetbrains.kotlin.builtins.functions.FunctionClassKind
 import org.jetbrains.kotlin.descriptors.annotations.AnnotationUseSiteTarget
 import org.jetbrains.kotlin.fir.contracts.FirContractDescription
@@ -875,7 +874,7 @@ class FirRenderer(builder: StringBuilder, private val mode: RenderMode = RenderM
     private val FirResolvedTypeRef.functionTypeKind: FunctionClassKind?
         get() {
             val classId = (type as? ConeClassLikeType)?.lookupTag?.classId ?: return null
-            return BuiltInFictitiousFunctionClassFactory.getFunctionalClassKind(
+            return FunctionClassKind.getFunctionalClassKind(
                 classId.shortClassName.asString(), classId.packageFqName
             )
         }