[Issue 19953] extern(C++) const ref to static array incorrectly adds const to the mangle name

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=19953

kinke at gmx.net changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|x86                         |All
                 OS|Windows                     |All

--- Comment #2 from kinke at gmx.net ---
Related issue for Linux x64:

C++: short test27(const int (&)[6][291])
     _Z6test27RA6_A291_Ki

D:   extern(C++) short test27(ref const int[291][6])
     _Z6test27RKA6_KA291_Ki

Note that the C++ mangling of `const(int[291][6])` and `const(int)[291][6]` is
identical for both MSVC and Itanium (and that's fine IMO).

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