Fix pretty printing of QualifiedName in gdb
Fix pretty printing of QualifiedName in gdb

The structure of QualifiedName was chnaged, and now we need to update the
gdb pretty printer.

BUG=

Review URL: https://codereview.chromium.org/139993003

git-svn-id: bf5cd6ccde378db821296732a091cfbcf5285fbd@165252 bbb929c8-8fbe-4397-9dbb-9b2b20218538

primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs,primiano/blink-gitcs