msvc::no_unique_address

[mglisse]

According to https://devblogs.microsoft.com/cppblog/msvc-cpp20-and-the-std-cpp20-switch/#c20-no_unique_address , MSVC ignores [[no_unique_address]], but some versions provide [[msvc::no_unique_address]] and actually act on it (this has also been added to compatible compilers like clang-18+).
Would it make sense for BOOST_ATTRIBUTE_NO_UNIQUE_ADDRESS to expand to this attribute under the right conditions?