Implement shadow-field compiler warning

Include what you use support for MSVC compiler

Implement C++ Library Fundamentals TS v2

Implement std::is_constant_evaluated or create a mechanism to allow C++ compiler intrinsics to be usable in constexpr functions

LIB should allow you to produce a pdb of all inputs

Enable managed types capture in lambdas when building C++/CLI

expose declspec as C++11 attributes

optimize for debugging like gcc -Og

start adding C++ concepts support to VC++ compiler

Please, let concurrency::details::_ResultHolder<_Type>::_Result be of std::optional<_Type> instead of just _Type.