runtime/race: update race_windows_amd64.syso

Update race_windows_amd64.syso to latest tsan (V3) runtime.

This version of the runtime depends on libsynchronization.a, so to
use this syso, you need to also be using a sufficiently up to date
version of GCC (notably GCC 5.1, installed on the Go windows builders
right now, does not include this library).

Updates #48231.
Updates #35006.
Fixes #49761.

Change-Id: Ia1e2b1d8fe7e2c99728150734935a2c522006caa
Reviewed-on: https://go-review.googlesource.com/c/go/+/420197
Reviewed-by: Keith Randall <khr@google.com>
Run-TryBot: Than McIntosh <thanm@google.com>
Reviewed-by: Cherry Mui <cherryyz@google.com>
TryBot-Result: Gopher Robot <gobot@golang.org>
diff --git a/src/runtime/race/README b/src/runtime/race/README
index 596700a..acd8b84 100644
--- a/src/runtime/race/README
+++ b/src/runtime/race/README
@@ -8,7 +8,7 @@
 race_freebsd_amd64.syso built with LLVM 127e59048cd3d8dbb80c14b3036918c114089529 and Go 59ab6f351a370a27458755dc69f4a837e55a05a6.
 race_linux_ppc64le.syso built with LLVM 41cb504b7c4b18ac15830107431a0c1eec73a6b2 and Go 851ecea4cc99ab276109493477b2c7e30c253ea8.
 race_netbsd_amd64.syso built with LLVM 41cb504b7c4b18ac15830107431a0c1eec73a6b2 and Go 851ecea4cc99ab276109493477b2c7e30c253ea8.
-race_windows_amd64.syso built with LLVM 89f7ccea6f6488c443655880229c54db1f180153 and Go f62d3202bf9dbb3a00ad2a2c63ff4fa4188c5d3b.
+race_windows_amd64.syso built with LLVM b6374437af39af66896da74a1dc1b8a0ece26bee and Go 3e97294663d978bf8abb7acec7cc615ef2f1ea75.
 race_linux_arm64.syso built with LLVM 41cb504b7c4b18ac15830107431a0c1eec73a6b2 and Go 851ecea4cc99ab276109493477b2c7e30c253ea8.
 race_darwin_arm64.syso built with LLVM 41cb504b7c4b18ac15830107431a0c1eec73a6b2 and Go 851ecea4cc99ab276109493477b2c7e30c253ea8.
 race_openbsd_amd64.syso built with LLVM fcf6ae2f070eba73074b6ec8d8281e54d29dbeeb and Go 8f2db14cd35bbd674cb2988a508306de6655e425.
diff --git a/src/runtime/race/internal/amd64v1/race_windows.syso b/src/runtime/race/internal/amd64v1/race_windows.syso
index 9fbf9b4..777bd83 100644
--- a/src/runtime/race/internal/amd64v1/race_windows.syso
+++ b/src/runtime/race/internal/amd64v1/race_windows.syso
Binary files differ