}
    add(FirErrors.FLOAT_LITERAL_OUT_OF_RANGE) { firDiagnostic ->
        FloatLiteralOutOfRangeImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }
    add(FirErrors.WRONG_LONG_SUFFIX) { firDiagnostic ->
        WrongLongSuffixImpl(
            firDiagnostic as KtPsiDiagnostic,
            token,
        )
    }

}

/**
 * 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.