DateTimePatternGenerator returns wrong result for narrow date format

The problem is in the DateTimeMatcher.set() which set the appearance for elements. If the element appears in the skeleton, it casts the subTypeValue from int to byte.

type[typeValue] = (byte) subTypeValue;

Because static value of NARROW is -0x100, the type[typeValue] is set to 0 after casting to byte. Therefore, skeleton "yMMMMMd" is same as "yd". I redefined the value for NARROW, SHORT and LONG but got one test failed. I think the new result looks better than original one. This is the failure:

Locale: en_US
Skeleton: yMMMd
Expecting result: Jan/13/1999
Got result: Jan 13, 1999

Comparing the distance before and after:

Pattern:M/d/y Distance before: 3 Distance after: 4
Pattern:MMMM d,yyyy Distance before: 4 Distance after: 4

Mark, please let me know if you have any concern. Thanks!

Fixes are in:
ICU4J: ChangeSet 24144 http://bugs.icu-project.org/trac/changeset/24144
ICU4C: ChangeSet 24151 http://bugs.icu-project.org/trac/changeset/24151