Previous patches added unit tests for the STABS parser and the
Breakpad symbol file writer; this adds unit tests for the "dumper"
class that sits between them, receiving data from the parser and
handing it to the writer. So now the whole pathway has coverage.
a=jimblandy, r=nealsid
git-svn-id: http://google-breakpad.googlecode.com/svn/trunk@467 4c0a9323-5329-0410-9bdc-e9ce6186880e