Allow to force moc/rcc/uic compiler used for AUTO(MOC|RCC|UIC).
Setting these properties is only necessary if you are going to do
strange things like build these tools as part of your own build system.
Setting these properties will also prevent cmake from testing the
binary: It is user-provided and assumed to be valid.
The change in commit v3.9.0-rc1~42^2~1 (Autogen: Per-config file
suffixes, 2017-05-15) broke Visual Studio builds because the generators
do not yet fully support per-config sources. Disable the behavior on
Visual Studio generators for now.
Fixes: #16939
The source files are already processed by cmQtAutomoc to look for
moc includes, so extend that to also look for ui_ includes and
find corresponding .ui files to process.
This replaces the need to invoke qt4_wrap_ui().
As the ui files are not likely to be part of the SOURCES of the
target, store the options associated with them separately in the
cmMakefile for querying during the autogen run.
