Some qtdeclarative pro files caused exceptions when trying to parse
them using the script. This included the following:
- handling conditions divided by newlines and backslashes
- handling conditions that have no scope
The parser has been fixed to deal with those cases and relevant
tests were added.
After the change, all qtdeclarative project files are parseable by
the script.
Change-Id: Ib9736423f7fb3bcc1944b26cfb3114306b4db9a7
Reviewed-by: Qt CMake Build Bot
Reviewed-by: Tobias Hunger <tobias.hunger@qt.io>
