QtAutogen: Extract a GetRccExecutable method.
QtAutogen: Expand rccfiles into a vector early in the autogen process.

This can be re-used as a vector.
test: add test for PARENT_SCOPE behavior

Test code courtesy of Alex Merry <alex.merry@kde.org>.
test: add a test for PARENT_SCOPE with multiple scopes

See the comment in the test for what is being tested here.
Revert "cmDefinitions: Don't store parent lookups"

This reverts commit 5abfde6cb8a1ae0b2825797eab6c2e9842eb7c49.

The behaviors associated with implicit pulldown on variable lookup
seriously conflict with the optimizations made in these commits.
Basically, since values were copied upon variable lookup, not just on
PARENT_SCOPE, coupled with PARENT_SCOPE's behavior based on whether the
variable is in the current scope or not causes serious problems with not
storing a value for every variable at every scope.

The commit changed behavior of the following example, among other cases:

  function(test_set)
    set(blah "value2")
    message("before PARENT_SCOPE blah=${blah}")
    set(blah ${blah} PARENT_SCOPE)
    message("after PARENT_SCOPE blah=${blah}")
  endfunction()
  set(blah value1)
  test_set()
  message("in parent scope, blah=${blah}")

Reported-by: Alex Merry <alex.merry@kde.org>
Reported-by: Ben Cooksley <bcooksley@kde.org>
Merge branch 'parent-scope-tests' into variable-pull-failure

* parent-scope-tests:
  test: add a test for PARENT_SCOPE with multiple scopes
  test: add test for PARENT_SCOPE behavior

Conflicts:
	Tests/RunCMake/set/RunCMakeTest.cmake
Merge branch 'revert-definition-map-lookup' into release
QtAutogen: Regenerate qrc files if their input changes (#15074)

Get dependencies from the output of ``rcc --list`` if using
Qt 5.  Otherwise process the file in the same way as the
qt4_add_resources macro.

This does not work for RCC files which are generated.

The cmake_autogen build step is implemented as a PRE_BUILD step
of the target currently if possible, rather than a standalone
custom target.  This is to keep the number of (synthesized)
custom targets that appear in the UI low, but in some cases
it is necessary to fall back to a full custom target.

Fall back to a full custom target for the VS builds if autorcc
is used.
FPHSA: remove unneeded variable dereferencing

These variables can be dereferenced by if() alone so do not do it here, avoiding
the risk of their content being treated as a variable name and dereferenced
again.
Merge topic 'revert-definition-map-lookup'

d1b62185 Merge branch 'parent-scope-tests' into variable-pull-failure
5f414cef Revert "cmDefinitions: Don't store parent lookups"
e0c0b1ac test: add a test for PARENT_SCOPE with multiple scopes
064c415d test: add test for PARENT_SCOPE behavior
Merge topic 'FPHSA-deref'

22362c65 FPHSA: remove unneeded variable dereferencing
Merge branch 'release'
Merge topic 'autorcc-depends'

6e1c359f QtAutogen: Regenerate qrc files if their input changes (#15074)
a2995318 QtAutogen: Expand rccfiles into a vector early in the autogen process.
506151af QtAutogen: Extract a GetRccExecutable method.
CMake Nightly Date Stamp