AI is not really good at nim 😂 but yeah I may eventually try to revive the PR,
in my opinion a function to turn typed into untyped nodes belongs in the std
library, but for it to be consistent we'd have to look at the compiler's code to
have a clear list of every transformation that is done by the compiler on AST
nodes after the semantic analysis to be able to reverse them, because it's not
only about sym nodes, you also need to take into accout implicit operations, for
example `echo foo` gets turned into `echo [$foo]` on typed AST, so you have to
also strip those implicit calls to get the untyped node