Fix return type of error_get_last()

Since phpGH-17056, the result may return the backtrace array.

Closes phpGH-17641

Author: iluuu1994

Zend/Optimizer/zend_func_infos.h

@@ -429,7 +429,7 @@ static const func_info_t func_infos[] = {
 #endif
 	F1("get_current_user", MAY_BE_STRING),
 	FN("get_cfg_var", MAY_BE_STRING|MAY_BE_ARRAY|MAY_BE_ARRAY_KEY_LONG|MAY_BE_ARRAY_KEY_STRING|MAY_BE_ARRAY_OF_STRING|MAY_BE_ARRAY_OF_ARRAY|MAY_BE_FALSE),
-	F1("error_get_last", MAY_BE_ARRAY|MAY_BE_ARRAY_KEY_STRING|MAY_BE_ARRAY_OF_LONG|MAY_BE_ARRAY_OF_STRING|MAY_BE_NULL),
+	F1("error_get_last", MAY_BE_ARRAY|MAY_BE_ARRAY_KEY_STRING|MAY_BE_ARRAY_OF_LONG|MAY_BE_ARRAY_OF_STRING|MAY_BE_ARRAY_OF_ARRAY|MAY_BE_NULL),
 	F1("highlight_file", MAY_BE_STRING|MAY_BE_BOOL),
 	F1("php_strip_whitespace", MAY_BE_STRING),
 	F1("highlight_string", MAY_BE_STRING|MAY_BE_TRUE),

ext/standard/basic_functions.stub.php

@@ -1977,7 +1977,7 @@ function get_cfg_var(string $option): string|array|false {}
 function error_log(string $message, int $message_type = 0, ?string $destination = null, ?string $additional_headers = null): bool {}
 
 /**
- * @return array<string, int|string>|null
+ * @return array<string, int|string|array>|null
  * @refcount 1
  */
 function error_get_last(): ?array {}