[CMake] Solution folder property does not work for external projects in cmake 2.8.3

[Rolf Eike Beer]

> Presently, if the generated FOLDER structure is incorrect, our
> automated testing will not currently catch an error of that sort. Does
> anybody have a good idea for how to verify the correctness of the
> generated solution file? Right now it requires manual inspection of
> the VS GUI to determine whether the result is correct or not.

Those solution files are XML, no? Can't this be done by some XML parsing,
e.g. looking if the target is target of the proper folder node?

Eike