A Console instance over process stdio passed a patched write the line and
an error handler, and discarded what the write threw, whatever its
ignoreErrors setting. Node's kWriteToConsole does that only with
ignoreErrors (the default, and the global console). With ignoreErrors
false, from the options or the third constructor argument, it calls
stream.write(line) alone and lets a throw propagate out of the console
method.
The console write path now takes the instance's ignoreErrors, so such an
instance passes only the line and keeps the write's exception pending.
Instances bound to other streams already followed the setting.
