This patch to the Go frontend exports the type "any" as a builtin.
Otherwise we can't tell the difference between builtin type "any" and
a locally defined type "any".
This will require updates to the gccgo export data parsers in the main
Go repo and the x/tools repo. These updates are
https://go.dev/cl/537195
and
https://go.dev/cl/537215.
Bootstrapped and ran Go testsuite on x86_64-pc-linux-gnu. Committed
to mainline.
Ian