Separate the logic to find all used libraries from the code that writes out
the link_library information into the CMakeLists(.gen)?.txt files.
This patch will remove some "PUBLIC_LIBRARIES Qt::Core" from generated files.
This is due to us handling some Qt libraries in special ways in some of our
add_qt_* helpers. These special libraries were added to the LIBRARIES section,
but actually they should be added to the PUBLIC_LIBRARIES section instead. Do
so now, so that the newly generated files do not break things again.
Change-Id: I588781087a8aecc4d879e949735671d8085f0698
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
80e0c615a9