hg: jdk/sandbox: 8202105: Console echo is disabled when exiting jshell

[chris.hegarty at oracle.com]

Changeset: 84d0fe3cefd4
Author:    jlahoda
Date:      2018-04-30 15:03 +0200
URL:       http://hg.openjdk.java.net/jdk/sandbox/rev/84d0fe3cefd4

8202105: Console echo is disabled when exiting jshell
Summary: Preserving original terminal echo state when Console.readPassword finishes.
Reviewed-by: sherman, martin

! 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