Description:
------------
When accessing Windows LPSTR, the whole program crashes.

===========
php -v
PHP 7.3.8 (cli) (built: Jul 30 2019 12:44:06) ( ZTS MSVC15 (Visual C++ 2017) x64 )
Copyright (c) 1997-2018 The PHP Group
Zend Engine v3.3.8, Copyright (c) 1998-2018 Zend Technologies
    with Zend OPcache v7.3.8, Copyright (c) 1999-2018, by Zend Technologies

php -m
[PHP Modules]
bcmath
calendar
Core
ctype
curl
date
dom
filter
gd
hash
iconv
json
libxml
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mysqli
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openssl
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Phar
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Reflection
runkit7
session
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sqlite3
standard
tokenizer
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xml
xmlreader
xmlwriter
yaml
Zend OPcache
zip
zlib

[Zend Modules]
Zend OPcache


Test script:
---------------
$ffi = \FFI::cdef(<<<EOL
typedef unsigned long DWORD;
typedef int BOOL;
typedef DWORD *LPDWORD;
typedef void *LPVOID;
typedef LPVOID HINTERNET;
typedef char* *LPSTR;
typedef struct {
  DWORD dwLowDateTime;
  DWORD dwHighDateTime;
} FILETIME, *PFILETIME, *LPFILETIME;
typedef struct {
  DWORD dwOption;
  union {
    DWORD    dwValue;
    LPSTR    pszValue;
    FILETIME ftValue;
  } Value;
} INTERNET_PER_CONN_OPTIONA, *LPINTERNET_PER_CONN_OPTIONA;
typedef struct {
  DWORD                       dwSize;
  LPSTR                       pszConnection;
  DWORD                       dwOptionCount;
  DWORD                       dwOptionError;
  LPINTERNET_PER_CONN_OPTIONA pOptions;
} INTERNET_PER_CONN_OPTION_LISTA, *LPINTERNET_PER_CONN_OPTION_LISTA;
typedef DWORD WINAPI_InternetOption;
BOOL InternetSetOptionA(HINTERNET hInternet, WINAPI_InternetOption dwOption, LPVOID lpBuffer, DWORD dwBufferLength);
BOOL InternetQueryOptionA(HINTERNET hInternet, WINAPI_InternetOption dwOption, LPVOID lpBuffer, LPDWORD 
lpdwBufferLength);
EOL
			, "Wininet.dll");

$list = $ffi->new("INTERNET_PER_CONN_OPTION_LISTA");
		$opt = $ffi->new("INTERNET_PER_CONN_OPTIONA");
		$str = \FFI::new("char*", "");
		$opt->dwOption = 1;
		$opt->Value->pszValue = \FFI::addr($str);
		$list->dwSize = \FFI::sizeof($list);
		$list->pszConnection = null;
		$list->dwOptionCount = 1;
		$list->dwOptionError = 0;
		$list->pOptions = \FFI::addr($opt);
		$listptr = \FFI::addr($list);

		$int = $ffi->new("DWORD");
		$int->cdata = \FFI::sizeof($list) * 2;
		$ptr = \FFI::addr($int);

		$ffi->InternetQueryOptionA(null, 75, $listptr, $ptr);

		var_dump($list);// crashes when it comes to pszValue which is a LPSTR pointer

Expected result:
----------------
object(FFI\CData:struct <anonymous>)#5 (5) {
  ["dwSize"]=>
  int(32)
  ["pszConnection"]=>
  NULL
  ["dwOptionCount"]=>
  int(1)
  ["dwOptionError"]=>
  int(0)
  ["pOptions"]=>
  object(FFI\CData:struct <anonymous>*)#11 (1) {
    [0]=>
    object(FFI\CData:struct <anonymous>)#12 (2) {
      ["dwOption"]=>
      int(1)
      ["Value"]=>
      object(FFI\CData:union <anonymous>)#13 (3) {
        ["dwValue"]=>
        int(2)
        ["pszValue"]=>
        string(xxx) "xxxxx"
        ["value...."]

Actual result:
--------------
object(FFI\CData:struct <anonymous>)#5 (5) {
  ["dwSize"]=>
  int(32)
  ["pszConnection"]=>
  NULL
  ["dwOptionCount"]=>
  int(1)
  ["dwOptionError"]=>
  int(0)
  ["pOptions"]=>
  object(FFI\CData:struct <anonymous>*)#11 (1) {
    [0]=>
    object(FFI\CData:struct <anonymous>)#12 (2) {
      ["dwOption"]=>
      int(1)
      ["Value"]=>
      object(FFI\CData:union <anonymous>)#13 (3) {
        ["dwValue"]=>
        int(2)
        ["pszValue"]=> //crashes