[C++ PATCH] some cleanups

[Nathan Sidwell]

A few cleanups from the modules branch.

* The TEMPLATE_INFO comments still described TREE_LIST contents.
* we didn't check we were looking at a TEMPLATE_INFO in one case
* we declared some (now?) non-existent dump functions
* we made a name-lookup internal dumping function extern
* we made a template (now?) internal creator function extern

committing to trunk.

nathan
-- 
Nathan Sidwell
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