[dev.go2go] go/types: gotype cmd to use new unified type parameter syntax

Change-Id: I76b0d0312e9f7e262139e3b7e4fb8c22989fbca9
Reviewed-on: https://go-review.googlesource.com/c/go/+/251443
Reviewed-by: Robert Griesemer <[email protected]>

Author: griesemer

src/go/types/gotype.go

@@ -118,6 +118,7 @@ var (
 )
 
 func initParserMode() {
+	parserMode = parser.UnifiedParamLists
 	if *allErrors {
 		parserMode |= parser.AllErrors
 	}