hg: jdk8/tl/jdk: 8008386: (cs) Unmappable leading should be decoded to replacement.

[xueming.shen at oracle.com]

Changeset: 3b00bf85a6f5
Author:    sherman
Date:      2013-10-21 18:22 -0700
URL:       http://hg.openjdk.java.net/jdk8/tl/jdk/rev/3b00bf85a6f5

8008386: (cs) Unmappable leading should be decoded to replacement.
Summary: updated the unmappable/malformed detecting handling for db charsets
Reviewed-by: naoto

! src/share/classes/sun/nio/cs/ext/DoubleByte.java
! test/sun/nio/cs/TestIBMBugs.java
+ test/sun/nio/cs/TestUnmappable.java