IntelliSense doesn't recognize all(__has_*) compiler builtins\pre-defines

[Iipal]

• OS and Version: Windows 10 x64 18362 + WSL Fedora Remix
• VS Code Version: 1.44.0
• C/C++ Extension Version: 0.27.0

How to:
With /usr/bin/clang 9.0.1 doesn't recognize followed code:

BUT, if I compile - all work correctly:

theme Twilight Pro

[sean-mcmanus]

The issue repros with Visual Studio as well. I've filed a bug at https://developercommunity.visualstudio.com/content/problem/988825/c-intellisense-gives-incorrect-value-for-has-attri.html .