diff --git a/resources/functionMap.php b/resources/functionMap.php
index 6923ba01c4..ad1e45d53f 100644
--- a/resources/functionMap.php
+++ b/resources/functionMap.php
@@ -125,14 +125,6 @@
 'apc_store' => ['bool', 'key'=>'string', 'var'=>'', 'ttl='=>'int'],
 'apc_store\'1' => ['array', 'values'=>'array', 'unused='=>'', 'ttl='=>'int'],
 'APCIterator::__construct' => ['void', 'cache'=>'string', 'search='=>'', 'format='=>'int', 'chunk_size='=>'int', 'list='=>'int'],
-'APCIterator::current' => ['mixed'],
-'APCIterator::getTotalCount' => ['int'],
-'APCIterator::getTotalHits' => ['int'],
-'APCIterator::getTotalSize' => ['int'],
-'APCIterator::key' => ['string'],
-'APCIterator::next' => ['void'],
-'APCIterator::rewind' => ['void'],
-'APCIterator::valid' => ['bool'],
 'apcu_add' => ['bool', 'key'=>'string', 'var'=>'', 'ttl='=>'int'],
 'apcu_add\'1' => ['array<string,int>', 'values'=>'array<string,mixed>', 'unused='=>'', 'ttl='=>'int'],
 'apcu_cache_info' => ['__benevolent<array<string,mixed>|false>', 'limited='=>'bool'],
@@ -150,14 +142,6 @@
 'apcu_store' => ['bool', 'key'=>'string', 'var='=>'', 'ttl='=>'int'],
 'apcu_store\'1' => ['array', 'values'=>'array', 'unused='=>'', 'ttl='=>'int'],
 'APCuIterator::__construct' => ['void', 'search='=>'string|string[]|null', 'format='=>'int', 'chunk_size='=>'int', 'list='=>'int'],
-'APCuIterator::current' => ['mixed'],
-'APCuIterator::getTotalCount' => ['int'],
-'APCuIterator::getTotalHits' => ['int'],
-'APCuIterator::getTotalSize' => ['int'],
-'APCuIterator::key' => ['string'],
-'APCuIterator::next' => ['void'],
-'APCuIterator::rewind' => ['void'],
-'APCuIterator::valid' => ['bool'],
 'apd_breakpoint' => ['bool', 'debug_level'=>'int'],
 'apd_callstack' => ['array'],
 'apd_clunk' => ['void', 'warning'=>'string', 'delimiter='=>'string'],
@@ -172,16 +156,6 @@
 'apd_set_session' => ['void', 'debug_level'=>'int'],
 'apd_set_session_trace' => ['void', 'debug_level'=>'int', 'dump_directory='=>'string'],
 'apd_set_session_trace_socket' => ['bool', 'tcp_server'=>'string', 'socket_type'=>'int', 'port'=>'int', 'debug_level'=>'int'],
-'AppendIterator::__construct' => ['void'],
-'AppendIterator::append' => ['void', 'iterator'=>'Iterator'],
-'AppendIterator::current' => ['mixed'],
-'AppendIterator::getArrayIterator' => ['ArrayIterator'],
-'AppendIterator::getInnerIterator' => ['iterator'],
-'AppendIterator::getIteratorIndex' => ['int'],
-'AppendIterator::key' => ['mixed'],
-'AppendIterator::next' => ['void'],
-'AppendIterator::rewind' => ['void'],
-'AppendIterator::valid' => ['bool'],
 'array_change_key_case' => ['array', 'input'=>'array', 'case='=>'int'],
 'array_chunk' => ['list<array>', 'input'=>'array', 'size'=>'positive-int', 'preserve_keys='=>'bool'],
 'array_column' => ['array', 'array'=>'array', 'column_key'=>'mixed', 'index_key='=>'mixed'],
@@ -849,14 +823,6 @@
 'call_user_func_array' => ['mixed', 'function'=>'callable', 'parameters'=>'array<int,mixed>'],
 'call_user_method' => ['mixed', 'method_name'=>'string', 'obj'=>'object', 'parameter='=>'mixed', '...args='=>'mixed'],
 'call_user_method_array' => ['mixed', 'method_name'=>'string', 'obj'=>'object', 'params'=>'array<int,mixed>'],
-'CallbackFilterIterator::__construct' => ['void', 'iterator'=>'Iterator', 'func'=>'callable'],
-'CallbackFilterIterator::accept' => ['bool'],
-'CallbackFilterIterator::current' => ['mixed'],
-'CallbackFilterIterator::getInnerIterator' => ['Iterator'],
-'CallbackFilterIterator::key' => ['mixed'],
-'CallbackFilterIterator::next' => ['void'],
-'CallbackFilterIterator::rewind' => ['void'],
-'CallbackFilterIterator::valid' => ['bool'],
 'ceil' => ['__benevolent<float|false>', 'number'=>'float'],
 'chdb::__construct' => ['void', 'pathname'=>'string'],
 'chdb::get' => ['string', 'key'=>'string'],
@@ -1447,43 +1413,6 @@
 'Directory::close' => ['void', 'dir_handle='=>'resource'],
 'Directory::read' => ['string|false', 'dir_handle='=>'resource'],
 'Directory::rewind' => ['void', 'dir_handle='=>'resource'],
-'DirectoryIterator::__construct' => ['void', 'path'=>'string'],
-'DirectoryIterator::__toString' => ['string'],
-'DirectoryIterator::current' => ['DirectoryIterator'],
-'DirectoryIterator::getATime' => ['int'],
-'DirectoryIterator::getBasename' => ['string', 'suffix='=>'string'],
-'DirectoryIterator::getChildren' => ['RecursiveDirectoryIterator'],
-'DirectoryIterator::getCTime' => ['int'],
-'DirectoryIterator::getExtension' => ['string'],
-'DirectoryIterator::getFileInfo' => ['SplFileInfo', 'class_name='=>'string'],
-'DirectoryIterator::getFilename' => ['string'],
-'DirectoryIterator::getGroup' => ['int'],
-'DirectoryIterator::getInode' => ['int'],
-'DirectoryIterator::getLinkTarget' => ['string'],
-'DirectoryIterator::getMTime' => ['int'],
-'DirectoryIterator::getOwner' => ['int'],
-'DirectoryIterator::getPath' => ['string'],
-'DirectoryIterator::getPathInfo' => ['SplFileInfo', 'class_name='=>'string'],
-'DirectoryIterator::getPathname' => ['string'],
-'DirectoryIterator::getPerms' => ['int'],
-'DirectoryIterator::getRealPath' => ['string'],
-'DirectoryIterator::getSize' => ['int'],
-'DirectoryIterator::getType' => ['string'],
-'DirectoryIterator::isDir' => ['bool'],
-'DirectoryIterator::isDot' => ['bool'],
-'DirectoryIterator::isExecutable' => ['bool'],
-'DirectoryIterator::isFile' => ['bool'],
-'DirectoryIterator::isLink' => ['bool'],
-'DirectoryIterator::isReadable' => ['bool'],
-'DirectoryIterator::isWritable' => ['bool'],
-'DirectoryIterator::key' => ['string'],
-'DirectoryIterator::next' => ['void'],
-'DirectoryIterator::openFile' => ['SplFileObject', 'mode='=>'string', 'use_include_path='=>'bool', 'context='=>'resource'],
-'DirectoryIterator::rewind' => ['void'],
-'DirectoryIterator::seek' => ['void', 'position'=>'int'],
-'DirectoryIterator::setFileClass' => ['void', 'class_name='=>'string'],
-'DirectoryIterator::setInfoClass' => ['void', 'class_name='=>'string'],
-'DirectoryIterator::valid' => ['bool'],
 'dirname' => ['string', 'path'=>'string', 'levels='=>'positive-int'],
 'disk_free_space' => ['float|false', 'path'=>'string'],
 'disk_total_space' => ['float|false', 'path'=>'string'],
@@ -1752,11 +1681,6 @@
 'eio_unlink' => ['resource|false', 'path'=>'string', 'pri='=>'int', 'callback='=>'callable', 'data='=>'mixed'],
 'eio_utime' => ['resource|false', 'path'=>'string', 'atime'=>'float', 'mtime'=>'float', 'pri='=>'int', 'callback='=>'callable', 'data='=>'mixed'],
 'eio_write' => ['resource|false', 'fd'=>'mixed', 'str'=>'string', 'length='=>'int', 'offset='=>'int', 'pri='=>'int', 'callback='=>'callable', 'data='=>'mixed'],
-'EmptyIterator::current' => ['mixed'],
-'EmptyIterator::key' => ['mixed'],
-'EmptyIterator::next' => ['void'],
-'EmptyIterator::rewind' => ['void'],
-'EmptyIterator::valid' => ['bool'],
 'enchant_broker_describe' => ['array', 'broker'=>'resource'],
 'enchant_broker_dict_exists' => ['bool', 'broker'=>'resource', 'tag'=>'string'],
 'enchant_broker_free' => ['bool', 'broker'=>'resource'],
@@ -2415,13 +2339,6 @@
 'filepro_retrieve' => ['string', 'row_number'=>'int', 'field_number'=>'int'],
 'filepro_rowcount' => ['int'],
 'filesize' => ['0|positive-int|false', 'filename'=>'string'],
-'FilesystemIterator::__construct' => ['void', 'path'=>'string', 'flags='=>'int'],
-'FilesystemIterator::current' => ['string|SplFileInfo'],
-'FilesystemIterator::getFlags' => ['int'],
-'FilesystemIterator::key' => ['string'],
-'FilesystemIterator::next' => ['void'],
-'FilesystemIterator::rewind' => ['void'],
-'FilesystemIterator::setFlags' => ['void', 'flags='=>'int'],
 'filetype' => ['string|false', 'filename'=>'string'],
 'filter_has_var' => ['bool', 'type'=>'int', 'variable_name'=>'string'],
 'filter_id' => ['int|false', 'filtername'=>'string'],
@@ -2430,14 +2347,6 @@
 'filter_list' => ['non-empty-list<non-falsy-string>'],
 'filter_var' => ['mixed', 'variable'=>'mixed', 'filter='=>'int', 'options='=>'mixed'],
 'filter_var_array' => ['array|false|null', 'data'=>'array', 'definition='=>'mixed', 'add_empty='=>'bool'],
-'FilterIterator::__construct' => ['void', 'iterator'=>'Iterator'],
-'FilterIterator::accept' => ['bool'],
-'FilterIterator::current' => ['mixed'],
-'FilterIterator::getInnerIterator' => ['Iterator'],
-'FilterIterator::key' => ['mixed'],
-'FilterIterator::next' => ['void'],
-'FilterIterator::rewind' => ['void'],
-'FilterIterator::valid' => ['bool'],
 'finfo::__construct' => ['void', 'options='=>'int', 'magic_file='=>'string'],
 'finfo::finfo' => ['void', 'options='=>'int', 'magic_file='=>'string'],
 'finfo::buffer' => ['string|false', 'string'=>'string', 'options='=>'int', 'context='=>'resource'],
@@ -2809,9 +2718,6 @@
 'gettimeofday' => ['array|float', 'get_as_float='=>'bool'],
 'gettype' => ['string', 'var'=>'mixed'],
 'glob' => ['list<string>|false', 'pattern'=>'string', 'flags='=>'int'],
-'GlobIterator::__construct' => ['void', 'path'=>'string', 'flags='=>'int'],
-'GlobIterator::cont' => ['int'],
-'GlobIterator::count' => ['0|positive-int'],
 'Gmagick::__construct' => ['void', 'filename='=>'string'],
 'Gmagick::addimage' => ['Gmagick', 'gmagick'=>'gmagick'],
 'Gmagick::addnoiseimage' => ['Gmagick', 'noise'=>'int'],
@@ -4643,27 +4549,6 @@
 'ImagickPixel::setColorValueQuantum' => ['void', 'color'=>'int', 'value'=>'mixed'],
 'ImagickPixel::setHSL' => ['bool', 'hue'=>'float', 'saturation'=>'float', 'luminosity'=>'float'],
 'ImagickPixel::setIndex' => ['void', 'index'=>'int'],
-'ImagickPixelIterator::__construct' => ['void', 'wand'=>'imagick'],
-'ImagickPixelIterator::clear' => ['bool'],
-'ImagickPixelIterator::current' => ['mixed'],
-'ImagickPixelIterator::destroy' => ['bool'],
-'ImagickPixelIterator::getCurrentIteratorRow' => ['array'],
-'ImagickPixelIterator::getIteratorRow' => ['int'],
-'ImagickPixelIterator::getNextIteratorRow' => ['array'],
-'ImagickPixelIterator::getpixeliterator' => ['', 'Imagick'=>'Imagick'],
-'ImagickPixelIterator::getpixelregioniterator' => ['', 'Imagick'=>'Imagick', 'x'=>'', 'y'=>'', 'columns'=>'', 'rows'=>''],
-'ImagickPixelIterator::getPreviousIteratorRow' => ['array'],
-'ImagickPixelIterator::key' => ['int|string'],
-'ImagickPixelIterator::newPixelIterator' => ['bool', 'wand'=>'imagick'],
-'ImagickPixelIterator::newPixelRegionIterator' => ['bool', 'wand'=>'imagick', 'x'=>'int', 'y'=>'int', 'columns'=>'int', 'rows'=>'int'],
-'ImagickPixelIterator::next' => ['void'],
-'ImagickPixelIterator::resetIterator' => ['bool'],
-'ImagickPixelIterator::rewind' => ['void'],
-'ImagickPixelIterator::setIteratorFirstRow' => ['bool'],
-'ImagickPixelIterator::setIteratorLastRow' => ['bool'],
-'ImagickPixelIterator::setIteratorRow' => ['bool', 'row'=>'int'],
-'ImagickPixelIterator::syncIterator' => ['bool'],
-'ImagickPixelIterator::valid' => ['bool'],
 'imap_8bit' => ['string|false', 'text'=>'string'],
 'imap_alerts' => ['array|false'],
 'imap_append' => ['bool', 'stream_id'=>'resource', 'folder'=>'string', 'message'=>'string', 'options='=>'string', 'internal_date='=>'string'],
@@ -4747,8 +4632,6 @@
 'inclued_get_data' => ['array'],
 'inet_ntop' => ['string|false', 'in_addr'=>'string'],
 'inet_pton' => ['string|false', 'ip_address'=>'string'],
-'InfiniteIterator::__construct' => ['void', 'iterator'=>'Iterator'],
-'InfiniteIterator::next' => ['void'],
 'inflate_add' => ['string|false', 'context'=>'resource', 'encoded_data'=>'string', 'flush_mode='=>'int'],
 'inflate_get_read_len' => ['int|false', 'resource'=>'resource'],
 'inflate_get_status' => ['int|false', 'resource'=>'resource'],
@@ -5121,22 +5004,10 @@
 'is_uploaded_file' => ['bool', 'path'=>'string'],
 'is_writable' => ['bool', 'filename'=>'string'],
 'is_writeable' => ['bool', 'filename'=>'string'],
-'Iterator::current' => ['mixed'],
-'Iterator::key' => ['mixed'],
-'Iterator::next' => ['void'],
-'Iterator::rewind' => ['void'],
-'Iterator::valid' => ['bool'],
 'iterator_apply' => ['0|positive-int', 'iterator'=>'Traversable', 'function'=>'callable', 'params='=>'array'],
 'iterator_count' => ['0|positive-int', 'iterator'=>'Traversable'],
 'iterator_to_array' => ['array', 'iterator'=>'Traversable', 'use_keys='=>'bool'],
 'IteratorAggregate::getIterator' => ['Traversable'],
-'IteratorIterator::__construct' => ['void', 'iterator'=>'Traversable'],
-'IteratorIterator::current' => ['mixed'],
-'IteratorIterator::getInnerIterator' => ['Traversable'],
-'IteratorIterator::key' => ['mixed'],
-'IteratorIterator::next' => ['void'],
-'IteratorIterator::rewind' => ['void'],
-'IteratorIterator::valid' => ['bool'],
 'java_last_exception_clear' => [''],
 'java_last_exception_get' => ['object'],
 'java_reload' => ['array', 'new_jarpath'=>'new_jarpath'],
@@ -5392,15 +5263,6 @@
 'libxml_set_external_entity_loader' => ['bool', 'resolver_function'=>'callable'],
 'libxml_set_streams_context' => ['void', 'streams_context'=>'resource'],
 'libxml_use_internal_errors' => ['bool', 'use_errors='=>'bool'],
-'LimitIterator::__construct' => ['void', 'iterator'=>'Iterator', 'offset='=>'int', 'count='=>'int'],
-'LimitIterator::current' => ['mixed'],
-'LimitIterator::getInnerIterator' => ['Iterator'],
-'LimitIterator::getPosition' => ['int'],
-'LimitIterator::key' => ['mixed'],
-'LimitIterator::next' => ['void'],
-'LimitIterator::rewind' => ['void'],
-'LimitIterator::seek' => ['int', 'position'=>'int'],
-'LimitIterator::valid' => ['bool'],
 'lineObj::__construct' => ['void'],
 'lineObj::add' => ['int', 'point'=>'pointObj'],
 'lineObj::addXY' => ['int', 'x'=>'float', 'y'=>'float', 'm'=>'float'],
@@ -6452,18 +6314,6 @@
 'mt_rand' => ['int', 'min'=>'int', 'max'=>'int'],
 'mt_rand\'1' => ['int'],
 'mt_srand' => ['void', 'seed='=>'int', 'mode='=>'int'],
-'MultipleIterator::__construct' => ['void', 'flags='=>'int'],
-'MultipleIterator::attachIterator' => ['void', 'iterator'=>'Iterator', 'infos='=>'string'],
-'MultipleIterator::containsIterator' => ['bool', 'iterator'=>'Iterator'],
-'MultipleIterator::countIterators' => ['int'],
-'MultipleIterator::current' => ['array'],
-'MultipleIterator::detachIterator' => ['void', 'iterator'=>'Iterator'],
-'MultipleIterator::getFlags' => ['int'],
-'MultipleIterator::key' => ['array'],
-'MultipleIterator::next' => ['void'],
-'MultipleIterator::rewind' => ['void'],
-'MultipleIterator::setFlags' => ['int', 'flags'=>'int'],
-'MultipleIterator::valid' => ['bool'],
 'mysql_affected_rows' => ['int', 'link_identifier='=>'resource'],
 'mysql_client_encoding' => ['string', 'link_identifier='=>'resource'],
 'mysql_close' => ['bool', 'link_identifier='=>'resource'],
@@ -7102,13 +6952,6 @@
 'ngettext' => ['string', 'msgid1'=>'string', 'msgid2'=>'string', 'n'=>'int'],
 'nl2br' => ['string', 'str'=>'string', 'is_xhtml='=>'bool'],
 'nl_langinfo' => ['string|false', 'item'=>'int'],
-'NoRewindIterator::__construct' => ['void', 'iterator'=>'Iterator'],
-'NoRewindIterator::current' => ['mixed'],
-'NoRewindIterator::getInnerIterator' => ['Iterator'],
-'NoRewindIterator::key' => ['mixed'],
-'NoRewindIterator::next' => ['void'],
-'NoRewindIterator::rewind' => ['void'],
-'NoRewindIterator::valid' => ['bool'],
 'Normalizer::getRawDecomposition' => ['string|null', 'input'=>'string'],
 'Normalizer::isNormalized' => ['bool', 'input'=>'string', 'form='=>'int'],
 'Normalizer::normalize' => ['string|false', 'input'=>'string', 'form='=>'int'],
@@ -7516,13 +7359,6 @@
 'overload' => ['', 'class_name'=>'string'],
 'override_function' => ['bool', 'function_name'=>'string', 'function_args'=>'string', 'function_code'=>'string'],
 'pack' => ['string', 'format'=>'string', '...args='=>'mixed'],
-'ParentIterator::__construct' => ['void', 'iterator'=>'RecursiveIterator'],
-'ParentIterator::accept' => ['bool'],
-'ParentIterator::getChildren' => ['ParentIterator'],
-'ParentIterator::hasChildren' => ['bool'],
-'ParentIterator::next' => ['void'],
-'ParentIterator::rewind' => ['void'],
-'ParentIterator::valid' => [''],
 'Parle\Lexer::advance' => ['void'],
 'Parle\Lexer::build' => ['void'],
 'Parle\Lexer::callout' => ['void', 'id'=>'int', 'callback'=>'callable'],
@@ -9255,15 +9091,6 @@
 'ReflectionZendExtension::getVersion' => ['string'],
 'Reflector::__toString' => ['string'],
 'Reflector::export' => ['?string'],
-'RegexIterator::__construct' => ['void', 'iterator'=>'Iterator', 'regex'=>'string', 'mode='=>'int', 'flags='=>'int', 'preg_flags='=>'int'],
-'RegexIterator::accept' => ['bool'],
-'RegexIterator::getFlags' => ['int'],
-'RegexIterator::getMode' => ['int'],
-'RegexIterator::getPregFlags' => ['int'],
-'RegexIterator::getRegex' => ['string'],
-'RegexIterator::setFlags' => ['bool', 'new_flags'=>'int'],
-'RegexIterator::setMode' => ['bool', 'new_mode'=>'int'],
-'RegexIterator::setPregFlags' => ['bool', 'new_flags'=>'int'],
 'register_event_handler' => ['bool', 'event_handler_func'=>'event_handler_func', 'handler_register_name'=>'handler_register_name', 'event_type_mask'=>'event_type_mask'],
 'register_shutdown_function' => ['void', 'function'=>'callable', '...parameter='=>'mixed'],
 'register_tick_function' => ['bool', 'function'=>'callable(): void', '...args='=>'mixed'],
@@ -9631,13 +9458,6 @@
 'SimpleXMLElement::getNamespaces' => ['string[]', 'recursive='=>'bool'],
 'SimpleXMLElement::registerXPathNamespace' => ['bool', 'prefix'=>'string', 'ns'=>'string'],
 'SimpleXMLElement::xpath' => ['static[]|false|null', 'path'=>'string'],
-'SimpleXMLIterator::current' => ['SimpleXMLIterator'],
-'SimpleXMLIterator::getChildren' => ['SimpleXMLIterator'],
-'SimpleXMLIterator::hasChildren' => ['bool'],
-'SimpleXMLIterator::key' => ['string|false'],
-'SimpleXMLIterator::next' => ['void'],
-'SimpleXMLIterator::rewind' => ['void'],
-'SimpleXMLIterator::valid' => ['bool'],
 'sin' => ['float', 'number'=>'float'],
 'sinh' => ['float', 'number'=>'float'],
 'sizeof' => ['int', 'var'=>'Countable|array', 'mode='=>'int'],
@@ -11743,12 +11563,6 @@
 'TokyoTyrant::sync' => ['mixed'],
 'TokyoTyrant::tune' => ['TokyoTyrant', 'timeout'=>'float', 'options='=>'int'],
 'TokyoTyrant::vanish' => ['mixed'],
-'TokyoTyrantIterator::__construct' => ['void', 'object'=>'mixed'],
-'TokyoTyrantIterator::current' => ['mixed'],
-'TokyoTyrantIterator::key' => ['mixed'],
-'TokyoTyrantIterator::next' => ['mixed'],
-'TokyoTyrantIterator::rewind' => ['void'],
-'TokyoTyrantIterator::valid' => ['bool'],
 'TokyoTyrantQuery::__construct' => ['void', 'table'=>'TokyoTyrantTable'],
 'TokyoTyrantQuery::addCond' => ['mixed', 'name'=>'string', 'op'=>'int', 'expr'=>'string'],
 'TokyoTyrantQuery::count' => ['0|positive-int'],
diff --git a/tests/PHPStan/Rules/Methods/data/bug-7519.php b/tests/PHPStan/Rules/Methods/data/bug-7519.php
index c1020b84f8..687879a887 100644
--- a/tests/PHPStan/Rules/Methods/data/bug-7519.php
+++ b/tests/PHPStan/Rules/Methods/data/bug-7519.php
@@ -7,7 +7,7 @@
 /**
  * @template TKey
  * @template T
- * @template TIterator as Iterator<TKey, T>
+ * @template TIterator as \Iterator<TKey, T>
  *
  * @extends FilterIterator<TKey, T, TIterator>
  */