cmd/go2go: type checking for generic constraints doesn't work correctly #39754
Description
What version of Go are you using (go version)?
$ go version go version devel +0a030888da Sat Jun 20 04:46:40 2020 +0000 windows/amd64
Does this issue reproduce with the latest release?
n/a
What operating system and processor architecture are you using (go env)?
- windows/amd64 with 0a03088
- go2go playground
What did you do?
https://go2goplay.golang.org/p/QLrCSQoyvVb
What did you expect to see?
go2go's typechecker error for line 57.
What did you see instead?
Successful compilation.