Function typesDefinitelyUnrelated

test/fixtures/snapshot/typescript.js:68305–68311

(source, target)

                !target.target.hasRestElement && (source.target.hasRestElement || target.target.fixedLength < source.target.fixedLength);
        }
        function typesDefinitelyUnrelated(source, target) {
            // Two tuple types with incompatible arities are definitely unrelated.
            // Two object types that each have a property that is unmatched in the other are definitely unrelated.
            return isTupleType(source) && isTupleType(target) ? tupleTypesDefinitelyUnrelated(source, target) :
                !!getUnmatchedProperty(source, target, /*requireOptionalProperties*/ false, /*matchDiscriminantProperties*/ true) &&
                    !!getUnmatchedProperty(target, source, /*requireOptionalProperties*/ false, /*matchDiscriminantProperties*/ false);
        }
        function getTypeFromInference(inference) {
            return inference.candidates ? getUnionType(inference.candidates, 2 /* UnionReduction.Subtype */) :
                inference.contraCandidates ? getIntersectionType(inference.contraCandidates) :