RFR: 8221709: replace use of style blockListLast

[Hannes Wallnöfer]

Please review:

JBS: https://bugs.openjdk.java.net/browse/JDK-8221709
Webrev: http://cr.openjdk.java.net/~hannesw/8221709/webrev.00/

The patch touches a lot of files, but it’s repetitive and conceptually simple.

Funnily enough there is no need for the :last-child selector as blockListLast used the same style as plain blockList.

Hannes