Tests: Enable RunCMake.CMakePackage visionOS cases with Xcode 15.2

Xcode 15.2 officially includes the visionOS SDKs.

Fix a typo from commit 2a398cd9 (CMakePackageConfigHelpers: Clarify
generate_apple_*_selection_file signatures, 2024-01-04) to make it pass.

Issue: #25266

Tests/RunCMake/CMakePackage/RunCMakeTest.cmake

@@ -64,10 +64,9 @@ if(APPLE AND CMAKE_C_COMPILER_ID STREQUAL "AppleClang")
     set(watch_archs "armv7k")
   endif()
 
-  #FIXME(#25266): Xcode 15.0 does not have visionOS.  Improve this condition.
-  #if(CMake_TEST_XCODE_VERSION VERSION_GREATER_EQUAL 15)
-  #  set(enable_visionos 1)
-  #endif()
+  if(CMake_TEST_XCODE_VERSION VERSION_GREATER_EQUAL 15.2)
+    set(enable_visionos 1)
+  endif()
 
   apple_export(macos Darwin "${macos_archs}" macosx)
   apple_export(ios iOS "arm64" iphoneos)

Tests/RunCMake/CMakePackage/apple-export-common.cmake

@@ -21,8 +21,8 @@ generate_apple_platform_selection_file(mylib-config-install.cmake
   IOS_SIMULATOR_INCLUDE_FILE ${IOS_SIMULATOR_INCLUDE_FILE}
   TVOS_INCLUDE_FILE lib/tvos/cmake/mylib/mylib-targets.cmake
   TVOS_SIMULATOR_INCLUDE_FILE lib/tvos-simulator/cmake/mylib/mylib-targets.cmake
-  VISIONOS_INCLUDE_FILE lib/watchos/cmake/mylib/mylib-targets.cmake
-  VISIONOS_SIMULATOR_INCLUDE_FILE lib/watchos-simulator/cmake/mylib/mylib-targets.cmake
+  VISIONOS_INCLUDE_FILE lib/visionos/cmake/mylib/mylib-targets.cmake
+  VISIONOS_SIMULATOR_INCLUDE_FILE lib/visionos-simulator/cmake/mylib/mylib-targets.cmake
   WATCHOS_INCLUDE_FILE lib/watchos/cmake/mylib/mylib-targets.cmake
   WATCHOS_SIMULATOR_INCLUDE_FILE lib/watchos-simulator/cmake/mylib/mylib-targets.cmake
   )