RFR: A few more full qualifiers for binaryTreeDictionary.cpp

[Roman Kennke]

Hello,

This is related to:

http://mail.openjdk.java.net/pipermail/hotspot-gc-dev/2012-November/005319.html

and probably a bunch of previous commits. While trying to make a debug
build, I stumbled over a few missing qualifiers with GCC 4.7.2. This
patch fixes those by adding this-> in a few places.

http://cr.openjdk.java.net/~rkennke/qualifiers/webrev.00/

I would be happy to see this going in.

Cheers,
Roman