d31dbb9555
#170525 Previously, lookup tables were defined in a header so that they can be constexpr, but this lead to each translation unit having it's own copy, bloating the library size. Looking at current usages of wctype functions, they are always used at runtime, so there's no benefit of having them constexpr, so I'm moving them to a cpp file, so that there's only a single copy in the library.
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