This is a bit of a cleanup, mainly around unity build, and a few other
minor things:
- I replaced the direct inclusion of sources files using
`set_source_files_properties`, and instead used
`NO_UNITY_BUILD_SOURCES` when possible. In most cases, they are being
excluded in their respective `qt_internal_extend_target` but sometimes
I had to make a new extension.
- In few cases, we had to manually exclude the NO_PCH files, so, I
instead passed them directly to the NO_PCH_SOURCES which also exclude
them from the unity build as well.
- Removed a few unnecessary ""
Pick-to: 6.5
Task-number: QTBUG-109394
Change-Id: I466576592c1d115a2da4d88672c1e4b9f995f2ed
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
7e074bd8a0