coreclr.dll size regressed ~200kB due to constexpr changes

[jkotas]

#39532 introduce unexpected ~200kB size regression in coreclr.dll size on Windows x64:

commit a9b0beb

5,028,352 coreclr.dll

commit 9026457

5,209,600 coreclr.dll

[Dotnet-GitSync-Bot]

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[jkotas]

It may be best to just move to the constant data to .cpp where possible. It seems to be the only full portable and reliable way to avoid the constant duplication.

#39532 (comment)

[mangod9]

Assume this means we have to conditionally compile using constexpr only on Linux?

[jkotas]

Or move the static data to the .cpp files and stop depending on these fancy features that do not work...