urlmon/tests: Fix protocol tests when proxy is configured

[Ge van Geldorp]

There is a large amount of proxy configurations possible on Windows (WPAD,
proxy.pac, fixed proxy values), which might behave differently on a second
run of the protocol test compared to the first run. These configurations
influence when/how IInternetProtocolSink methods are called. For example,
with a standard, direct connection you'll get the following ReportProgress
notifications during the https test:
BINDSTATUS_FINDINGRESOURCE
BINDSTATUS_CONNECTING
BINDSTATUS_SENDINGREQUEST
BINDSTATUS_ACCEPTRANGES
BINDSTATUS_MIMETYPEAVAILABLE
However, when you run the protocol test for the second time on a machine
with a fixed proxy server configured, you'll only get these notifications:
BINDSTATUS_SENDINGREQUEST
BINDSTATUS_ACCEPTRANGES
BINDSTATUS_MIMETYPEAVAILABLE

When a proxy is used, the BINDSTATUS_FINDINGRESOURCE and
BINDSTATUS_CONNECTING notifications report the hostname/ip address of the
proxy server, not the end destination.

Changelog:
  urlmon/tests: Fix protocol tests when proxy is configured

---
 dlls/urlmon/tests/protocol.c |   39
++++++++++++++++-----------------------
 1 files changed, 16 insertions(+), 23 deletions(-)
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