wininet/tests: Use todo_wine_if() in tests

[Marvin]

Hi,

While running your changed tests on Windows, 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=20501

Your paranoid android.


=== w1064 (32 bit http) ===
http.c:524: Test failed: HTTP_QUERY_RAW_HEADERS: expected length 0, but got 1
http.c:524: Test failed: HTTP_QUERY_RAW_HEADERS: expected length 0, but got 1
http.c:524: Test failed: HTTP_QUERY_RAW_HEADERS: expected length 0, but got 1
http.c:524: Test failed: HTTP_QUERY_RAW_HEADERS: expected length 0, but got 1
http.c:524: Test failed: HTTP_QUERY_RAW_HEADERS: expected length 0, but got 1
http.c:1763: Test failed: Expected 2, got 4
http.c:1764: Test failed: Expected CRLF, got '
http.c:2398: Test failed: count was wrong
http.c:2399: Test failed: http data wrong, got: Garbage: Header
http.c:3062: Test failed: HttpAddRequestHeaders succeeded
http.c:3063: Test failed: Expected error ERROR_HTTP_HEADER_NOT_FOUND, got 0
http.c:3068: Test failed: code = 200, expected 400
http.c:3068: Test failed: unexpected status code 200, expected 400
http.c:3068: Test failed: unexpected status code 200, expected 400
http.c:524: Test failed: HTTP_QUERY_RAW_HEADERS: expected length 0, but got 1