Function containsType

test/fixtures/snapshot/typescript.js:61114–61116

(types, type)

            return type.id;
        }
        function containsType(types, type) {
            return ts.binarySearch(types, type, getTypeId, ts.compareValues) >= 0;
        }
        function insertType(types, type) {
            var index = ts.binarySearch(types, type, getTypeId, ts.compareValues);
            if (index < 0) {