operator fun Long.invoke(some: Int) {}

                fun Float.invoke(some: Int) {}
                infix fun Byte.invoke(some: Int) {}

                interface Source {
                    infix fun String.plus(some: List<Int>): String
                    operator fun Int.plus(some: List<Int>): Int
                }
            """,
            v2 = """
                fun Int.invoke(some: Int) {}

    -> TYPE_VALID

    TYPE_DISALLOWED -> TYPE_DISALLOWED

    else -> error("unexpected type: $type")
  }
}

internal infix fun Byte.and(mask: Int): Int = toInt() and mask

internal infix fun Short.and(mask: Int): Int = toInt() and mask

            if (operatorChanged) {
                changes.add(modifierChangeDetail("operator", newIsOperator))
            }
            if (infixChanged) {
                changes.add(modifierChangeDetail("infix", newIsInfix))
            }
            return acceptOrReject(member, changes, Violation.error(member, "Breaking Kotlin modifier change"))
        }

        return null
    }

        hasKotlinFlag(ctMethod, Flag.Function.IS_OPERATOR)

    fun isKotlinInfixFunction(ctMethod: CtMethod): Boolean =
        hasKotlinFlag(ctMethod, Flag.Function.IS_INFIX)

    private
    fun hasKotlinFlag(ctClass: CtClass, flag: Flag): Boolean =
        queryKotlinMetadata(ctClass, false) { metadata ->
            metadata.hasKotlinFlag(MemberType.TYPE, ctClass.name, flag)
        }

    override val isOverride: Boolean
        get() = withValidityAssertion { psi.hasModifier(KtTokens.OVERRIDE_KEYWORD) }

    override val isInfix: Boolean
        get() = withValidityAssertion { psi.hasModifier(KtTokens.INFIX_KEYWORD) }

    override val isStatic: Boolean
        get() = withValidityAssertion { false }

    override val isTailRec: Boolean
        get() = withValidityAssertion { psi.hasModifier(KtTokens.TAILREC_KEYWORD) }