Fix ASSERT in WindowsDebugLogger

SetEvent returns non-zero on success, not zero.

Tbr=cwallez@chromium.org
Bug: none
Change-Id: Ib6ea74b19799bc3211136a5788b2bce8880f3b17
Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/26841
Reviewed-by: Austin Eng <enga@chromium.org>
Commit-Queue: Austin Eng <enga@chromium.org>

src/utils/WindowsDebugLogger.cpp

@@ -83,7 +83,7 @@ namespace utils {
 
         ~WindowsDebugLogger() override {
             if (mShouldExitHandle != nullptr) {
-                ASSERT(SetEvent(mShouldExitHandle));
+                ASSERT(SetEvent(mShouldExitHandle) != 0);
                 CloseHandle(mShouldExitHandle);
             }