When using the clang code model the operator '.' does no
more automatically change to '->' before applying a proposal.
Instead it points out whether a proposal requires to change
the operator when applying.
So, adapt the test and losen some condition to be able to
keep this test generic and maintainable.
Change-Id: I215fba9bfa98d5d056cd9493d7aa7192fb7a963f
Reviewed-by: Robert Loehning <robert.loehning@qt.io>