[dev.typeparams] runtime: replace Goos* constants with internal/goos versions [generated]

[dev.typeparams] runtime: replace Goos* constants with internal/goos versions [generated]

[git-generate]
cd src/runtime
gofmt -w -r "sys.GoosAix       -> goos.IsAix" .
gofmt -w -r "sys.GoosAndroid   -> goos.IsAndroid" .
gofmt -w -r "sys.GoosDarwin    -> goos.IsDarwin" .
gofmt -w -r "sys.GoosDragonfly -> goos.IsDragonfly" .
gofmt -w -r "sys.GoosFreebsd   -> goos.IsFreebsd" .
gofmt -w -r "sys.GoosHurd      -> goos.IsHurd" .
gofmt -w -r "sys.GoosIllumos   -> goos.IsIllumos" .
gofmt -w -r "sys.GoosIos       -> goos.IsIos" .
gofmt -w -r "sys.GoosJs        -> goos.IsJs" .
gofmt -w -r "sys.GoosLinux     -> goos.IsLinux" .
gofmt -w -r "sys.GoosNacl      -> goos.IsNacl" .
gofmt -w -r "sys.GoosNetbsd    -> goos.IsNetbsd" .
gofmt -w -r "sys.GoosOpenbsd   -> goos.IsOpenbsd" .
gofmt -w -r "sys.GoosPlan9     -> goos.IsPlan9" .
gofmt -w -r "sys.GoosSolaris   -> goos.IsSolaris" .
gofmt -w -r "sys.GoosWindows   -> goos.IsWindows" .
gofmt -w -r "sys.GoosZos       -> goos.IsZos" .
goimports -w *.go

Change-Id: I42bed2907317ed409812e5a3e2897c88a5d36f24
Reviewed-on: https://go-review.googlesource.com/c/go/+/328344
Trust: Michael Knyszek <mknyszek@google.com>
Run-TryBot: Michael Knyszek <mknyszek@google.com>
TryBot-Result: Go Bot <gobot@golang.org>
Reviewed-by: Matthew Dempsky <mdempsky@google.com>