@Alejandro just wanted to check if there is any interest trying to get this over the line?
As part of adding support for continuous performance sampling for swift-parcawe needed to add demangling support, currently we’re just accessing the runtime demangler using dlopen/dlsym, which works, but leaves some aftertaste 
It’s been 5-6 years since this was blocked, but it seems something that is asked for with some periodicity and it would be nice to have official Swift API for it.
Maybe the questions for the constrained environments (Swift Embedded in practice?) is clearer now.
What would be needed to bring it for review again in practice?