Generate data for instance of __cpp_type_info_ptr that refers to the C++ RTTI symbol for cd.
_todt.d Documentation: https://dlang.org/phobos/dmd_todt.html Coverage: https://codecov.io/gh/dlang/dmd/src/master/src/dmd/todt.d
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Put initializers and objects created from CTFE into a dt_t data structure so the backend puts them into the data segment.