Tests: Always detect VS and SDK availability on Windows

Move the detection block out of the Windows >= 8 conditional so it
can be used on other versions.

Tests/CMakeLists.txt

@@ -1780,6 +1780,23 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
     endif()
   endif()
 
+  if(WIN32)
+    set(reg_vs11 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\11.0;InstallDir]")
+    set(reg_vs12 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\12.0;InstallDir]")
+    set(reg_ws80 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\v8.0;InstallationFolder]")
+    set(reg_ws81 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\v8.1;InstallationFolder]")
+    set(reg_wp80 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\WindowsPhone\\v8.0;InstallationFolder]")
+    set(reg_wp81 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\WindowsPhone\\v8.1;InstallationFolder]")
+    foreach(reg vs11 vs12 ws80 ws81 wp80 wp81)
+      get_filename_component(r "${reg_${reg}}" ABSOLUTE)
+      if(IS_DIRECTORY "${r}")
+        set(${reg} 1)
+      else()
+        set(${reg} 0)
+      endif()
+    endforeach()
+  endif()
+
   get_filename_component(ntver "[HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion;CurrentVersion]" NAME)
   if(WIN32 AND ntver VERSION_GREATER 6.1) # Windows >= 8.0
     macro(add_test_VSWinStorePhone name generator systemName systemVersion)
@@ -1796,20 +1813,6 @@ ${CMake_BINARY_DIR}/bin/cmake -DDIR=dev -P ${CMake_SOURCE_DIR}/Utilities/Release
       list(APPEND TEST_BUILD_DIRS "${CMake_BINARY_DIR}/Tests/VSWinStorePhone/${name}")
     endmacro()
 
-    set(reg_vs11 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\11.0;InstallDir]")
-    set(reg_vs12 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\VisualStudio\\12.0;InstallDir]")
-    set(reg_ws80 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\v8.0;InstallationFolder]")
-    set(reg_ws81 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\Windows\\v8.1;InstallationFolder]")
-    set(reg_wp80 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\WindowsPhone\\v8.0;InstallationFolder]")
-    set(reg_wp81 "[HKEY_LOCAL_MACHINE\\SOFTWARE\\Microsoft\\Microsoft SDKs\\WindowsPhone\\v8.1;InstallationFolder]")
-    foreach(reg vs11 vs12 ws80 ws81 wp80 wp81)
-      get_filename_component(r "${reg_${reg}}" ABSOLUTE)
-      if(IS_DIRECTORY "${r}")
-        set(${reg} 1)
-      else()
-        set(${reg} 0)
-      endif()
-    endforeach()
     if(vs11 AND ws80)
       add_test_VSWinStorePhone(vs11-store80-X86 "Visual Studio 11 2012" WindowsStore 8.0)
       add_test_VSWinStorePhone(vs11-store80-ARM "Visual Studio 11 2012 ARM" WindowsStore 8.0)