[7u4] Request for approval for 7124223: [macosx] Regression test failure with new exception, when glyph is positioned explicitly

[Andrew Brygin]

This is a request to push the following fix to jdk7u-dev:

CR: http://bugs.sun.com/bugdatabase/view_bug.do?bug_id=7124223

Webrev: http://cr.openjdk.java.net/~bae/7124223/webrev/

Technical review: 
http://mail.openjdk.java.net/pipermail/macosx-port-dev/2012-February/003075.html

Thanks,
Andrew