017850fe5b
Bug: b/195948110 `setAttribute` stringifies any non-string value. `setAttributeNS` is also similarly modified for consistency. Change-Id: I883516f5ed2c977cdc591b697594817378607e53 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/215621 Reviewed-by: Gary Roumanis <grouma@google.com> Commit-Queue: Gary Roumanis <grouma@google.com> Commit-Queue: Srujan Gaddam <srujzs@google.com>