hg: jdk/jdk: 8194750: Console.readPassword does not save/restore tty settings

[xueming.shen at oracle.com]

Changeset: 906712e6afbf
Author:    sherman
Date:      2018-04-17 11:20 -0700
URL:       http://hg.openjdk.java.net/jdk/jdk/rev/906712e6afbf

8194750: Console.readPassword does not save/restore tty settings
Reviewed-by: martin, alanb

! src/java.base/share/classes/java/io/Console.java
! src/java.base/unix/native/libjava/Console_md.c
! src/java.base/windows/native/libjava/Console_md.c