[PATCH] wininet: Support large downloads.

[Marvin]

Hi,

While running your changed tests, I think I found new failures.
Being a bot and all I'm not very good at pattern recognition, so I might be
wrong, but could you please double-check?

Full results can be found at:
https://testbot.winehq.org/JobDetails.pl?Key=56324

Your paranoid android.


=== w7pro64 (32 bit report) ===

wininet:
http.c:6197: Test failed: HttpSendRequest failed: 12152

=== debian10 (32 bit report) ===

wininet:
ftp.c:81: Test failed: Expected ERROR_INTERNET_LOGIN_FAILURE, got 12110
ftp.c:112: Test failed: InternetConnect failed : 12110
ftp.c:113: Test failed: ERROR_SUCCESS, got 12110
ftp.c:122: Test failed: Expected ERROR_INTERNET_LOGIN_FAILURE, got 12110

=== debian10 (32 bit Chinese:China report) ===

wininet:
ftp.c:81: Test failed: Expected ERROR_INTERNET_LOGIN_FAILURE, got 12110
ftp.c:112: Test failed: InternetConnect failed : 12110
ftp.c:113: Test failed: ERROR_SUCCESS, got 12110
ftp.c:122: Test failed: Expected ERROR_INTERNET_LOGIN_FAILURE, got 12110

=== debian10 (64 bit WoW report) ===

wininet:
http.c:4573: Test failed: expected 1 pending read, got 2