Function getIndexInfoWithReadonly

test/fixtures/snapshot/typescript.js:63011–63013

(info, readonly)

            return result;
        }
        function getIndexInfoWithReadonly(info, readonly) {
            return info.isReadonly !== readonly ? createIndexInfo(info.keyType, info.type, readonly, info.declaration) : info;
        }
        function createLiteralType(flags, value, symbol, regularType) {
            var type = createType(flags);
            type.symbol = symbol;