[Issue 21585] add __traits(totype, string) to convert mangled type string to an existing type

[d-bugmail at puremagic.com]

https://issues.dlang.org/show_bug.cgi?id=21585

--- Comment #5 from Dlang Bot <dlang-bot at dlang.rocks> ---
dlang/dmd pull request #12339 "[dmd-cxx] Backport fixes and trivial features
from upstream dmd" was merged into dmd-cxx:

- 94a716fb10dfb00c513e00dca55bcdf74083e8fd by Walter Bright:
  [dmd-cxx] fix Issue 21585 - add __traits(totype, string) to convert mangled
type string to an existing type

https://github.com/dlang/dmd/pull/12339

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