Please review a simple change to (finally) implement the long-overdue
-Werror option.
The existing undocumented -Xwerror option is repurposed and renamed, and
its behavior modified to match the javac -Werror option. The old name
is retained as a alias "for a while" but since it is an undocumented
option it may be removed at any time, and perhaps in the next release
after this change (i.e. 16.)
In the resource file, an unused property is removed, and an error
(mismatched braces) is fixed in another.
-- Jon
JBS: https://bugs.openjdk.java.net/browse/JDK-8200460
Webrev: http://cr.openjdk.java.net/~jjg/8200363/webrev.00/
