Tests: Activate tests accidentally excluded from Xcode

The generator name is "Xcode", not "XCode".  Fix this typo.  Explicitly
exclude the SubDirSpaces test on Xcode because it does not work.  Also
tell the RunCMake.File_Generate test when Xcode is not multi-config so
it can exlcude the OutputConflict case.

Inspired-by: Daniele E. Domenichelli <daniele.domenichelli@iit.it>

Tests/CMakeLists.txt

@@ -77,7 +77,7 @@ if(BUILD_TESTING)
   # some old versions of make simply cannot handle spaces in paths
   if (MAKE_IS_GNU OR
       CMAKE_MAKE_PROGRAM MATCHES "nmake|gmake|wmake" OR
-      CMAKE_GENERATOR MATCHES "Visual Studio|XCode|Borland")
+      CMAKE_GENERATOR MATCHES "Visual Studio|Xcode|Borland")
     set(MAKE_SUPPORTS_SPACES 1)
   else()
     set(MAKE_SUPPORTS_SPACES 0)
@@ -1502,7 +1502,7 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
       )
   endif()
 
-  if(MAKE_SUPPORTS_SPACES)
+  if(MAKE_SUPPORTS_SPACES AND NOT CMAKE_GENERATOR STREQUAL "Xcode")
     add_test(SubDirSpaces ${CMAKE_CTEST_COMMAND}
       --build-and-test
       "${CMake_SOURCE_DIR}/Tests/SubDirSpaces"

Tests/RunCMake/CMakeLists.txt

@@ -18,6 +18,7 @@ endif()
 
 if(XCODE_VERSION AND "${XCODE_VERSION}" VERSION_LESS 2)
   set(TargetSources_ARGS -DXCODE_BELOW_2=1)
+  set(File_Generate_ARGS -DXCODE_BELOW_2=1)
 endif()
 
 add_RunCMake_test(CMP0019)

Tests/RunCMake/File_Generate/RunCMakeTest.cmake

@@ -1,8 +1,8 @@
 include(RunCMake)
 
 run_cmake(CommandConflict)
-if("${RunCMake_GENERATOR}" MATCHES "Visual Studio" OR "${RunCMake_GENERATOR}" MATCHES "XCode" )
-    run_cmake(OutputConflict)
+if("${RunCMake_GENERATOR}" MATCHES "Visual Studio|Xcode" AND NOT XCODE_BELOW_2)
+  run_cmake(OutputConflict)
 endif()
 run_cmake(EmptyCondition1)
 run_cmake(EmptyCondition2)