@jorropo.net burst my bubble; this could actually be observable by a very goofy case of a boxed nil interface call, something that the Go test suite did not test!
But, it's still salvageable; just generate one wrapper instead of zero, which is just a simplification of my second CL. redone
Gerrit Code Review
go-review.googlesource.com
Jake Bailey
This is a fun one: I just sent go.dev/cl/790740, which elides method wrappers for embedded types at offset zero, common for mixins/inherited data types. Doing this removes 60 _thousand_ method wrappers from tsgo's AST package, dropping the compilation of our main exe from 49s to 28s on my machine.