To declare GUID from string literal.
constexpr GUID foo2 = "{FCC01D3B-BF5F-43C3-BF10-DF09FCE08107}"_guid;
auto bar1 = "{FCC01D01-BF5F-43C3-BF10-DF09FCE08107}"_guid;
auto bar2 = "{FCC01D02-BF5F-43C3-BF10-DF09FCE08107}"_guid;
auto bar3 = "{FCC01D03-BF5F-43C3-BF10-DF09FCE08107}"_guid;
-- 2023-02-20 Raymond Yang