Fangrui Song c01ea0515f [test] Driver/ftime-trace.cpp: work around -Wmsvc-not-found
There may be one extra warning. Just make the check less strict.
```
clang: warning: unable to find a Visual Studio installation; try running Clang from a developer command prompt [-Wmsvc-not-found]
clang: warning: argument unused during compilation: '-ftime-trace' [-Wunused-command-line-argument]
clang: warning: argument unused during compilation: '-ftime-trace=e' [-Wunused-command-line-argument]
clang: warning: argument unused during compilation: '-ftime-trace-granularity=1' [-Wunused-command-line-argument]
```
2023-05-13 00:22:05 -07:00
..
2023-04-26 19:27:11 -04:00
2023-05-10 11:51:06 -04:00