std,cmd: go fix -any std cmd

This change mechanically replaces all occurrences of interface{}
by 'any' (where deemed safe by the 'any' modernizer) throughout
std and cmd, minus their vendor trees.

Since this fix is relatively numerous, it gets its own CL.

Also, 'go generate go/types'.

Change-Id: I14a6b52856c3291c1d27935409bca8d5fd4242a2
Reviewed-on: https://go-review.googlesource.com/c/go/+/719702
Commit-Queue: Alan Donovan <adonovan@google.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@google.com>
LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com>
Reviewed-by: Dmitri Shuralyov <dmitshur@golang.org>
Auto-Submit: Alan Donovan <adonovan@google.com>

src/cmd/asm/main.go

@@ -93,7 +93,7 @@ func main() {
 	for _, f := range flag.Args() {
 		lexer := lex.NewLexer(f)
 		parser := asm.NewParser(ctxt, architecture, lexer)
-		ctxt.DiagFunc = func(format string, args ...interface{}) {
+		ctxt.DiagFunc = func(format string, args ...any) {
 			diag = true
 			log.Printf(format, args...)
 		}