go/printer: print parenthesized declarations if len(d.Specs) > 1
Parenthesized declaration must be printed if len(d.Specs) > 1 even if d.Lparen==token.NoPos. This happens if the node tree is created programmatically. Otherwise, all but the first specifications just silently disappear from the output.
Change-Id: I17ab24bb1cd56fe1e611199698535ca60a97f5ea
GitHub-Last-Rev:
2f168dc7ad4a29149685efc70f180987523271e4
GitHub-Pull-Request: golang/go#28533
Reviewed-on: https://go-review.googlesource.com/c/146657
Run-TryBot: Robert Griesemer <gri@golang.org>
Reviewed-by: Robert Griesemer <gri@golang.org>