cmd/cgo: updated exported function parameter names
Functions that are exported through cgo will now retain their
parameter names provided that their parameter names use only
ASCII characters.
Fixes #37746
Change-Id: Ia5f643e7d872312e81c224febd1f81ce14425c32
GitHub-Last-Rev:
220959bebae7d654d96530498f40e3a2abe95080
GitHub-Pull-Request: golang/go#37750
Reviewed-on: https://go-review.googlesource.com/c/go/+/222619
Run-TryBot: Ian Lance Taylor <iant@golang.org>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Ian Lance Taylor <iant@golang.org>