callable = parts.last(),
                    )
                )
            }
        }
    }
}

private sealed class FqNameInterpretation {

    data class FqNameInterpretationAsPackage(val packageFqName: FqName) : FqNameInterpretation()
    data class FqNameInterpretationAsClassId(val classId: ClassId) : FqNameInterpretation()

}

/**
 * Helper abstraction to navigate through qualified FIR elements - we have to match [ClassId] and PSI qualifier pair
 * to correctly reason about long qualifiers.
 */
private sealed interface TypeQualifier {
    val referencedClassId: ClassId

    /**
     * Type can be imported with alias, and thus can be referenced by the name different from its actual name.
     *

            Errors.RESOLUTION_TO_CLASSIFIER,
            Errors.RESERVED_SYNTAX_IN_CALLABLE_REFERENCE_LHS,
            Errors.PARENTHESIZED_COMPANION_LHS_DEPRECATION,
            Errors.RESOLUTION_TO_PRIVATE_CONSTRUCTOR_OF_SEALED_CLASS,
            Errors.UNRESOLVED_REFERENCE,
            *Errors.TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM.factories,
            *Errors.TYPECHECKER_HAS_RUN_INTO_RECURSIVE_PROBLEM_IN_AUGMENTED_ASSIGNMENT.factories,