Otherwise they're doing exactly the same as Clang bots.
Also fix 64-bit-specific warnings that have sneaked in because we have been testing MSVC build only on 32-bit for a while.
TBR=ehmaldonado@webrtc.org
Bug: webrtc:8664
Change-Id: I875e568d75aa550726f54650c283b288d3f52012
Reviewed-on: https://webrtc-review.googlesource.com/35160
Commit-Queue: Oleh Prypin <oprypin@webrtc.org>
Reviewed-by: Guido Urdaneta <guidou@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Reviewed-by: Magnus Flodman <mflodman@webrtc.org>
Reviewed-by: Oleh Prypin <oprypin@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#21414}