update cc documentation

Author: Marco Rossignoli

docs/test/troubleshooting-code-coverage.md

@@ -34,6 +34,10 @@ For more information, see [Use code coverage to determine how much code is being
 
 You need Visual Studio Enterprise.
 
+### Are you running code coverage for native(c++) module on ARM64 version of Visual Studio?
+
+Code coverage for native module is not supported on ARM64 version of Visual Studio.
+
 ### No tests were executed
 
 Analysis—Check your output window. In the **Show Output from** drop-down list, choose **Tests**. See if there are any warnings or errors logged.