Tests: Teach GeneratorExpression to cover spaces in include dirs

Add a space to the imported include directories used for the test.
This works around funny quoted-`;` interpretation by Visual Studio.

Tests/GeneratorExpression/CMakeLists.txt

@@ -145,13 +145,13 @@ add_library(imported1 SHARED IMPORTED)
 set_property(TARGET imported1 PROPERTY IMPORTED_LOCATION_RELEASE release_loc)
 set_property(TARGET imported1 PROPERTY IMPORTED_LOCATION_DEBUG debug_loc)
 set_property(TARGET imported1 PROPERTY IMPORTED_CONFIGURATIONS RELEASE DEBUG)
-set_property(TARGET imported1 PROPERTY INTERFACE_INCLUDE_DIRECTORIES /imported1/include)
+set_property(TARGET imported1 PROPERTY INTERFACE_INCLUDE_DIRECTORIES "/imported1/include/with space")
 
 add_library(imported2 SHARED IMPORTED)
 set_property(TARGET imported2 PROPERTY IMPORTED_LOCATION_RELEASE release_loc)
 set_property(TARGET imported2 PROPERTY IMPORTED_LOCATION_DEBUG debug_loc)
 set_property(TARGET imported2 PROPERTY IMPORTED_CONFIGURATIONS RELEASE DEBUG)
-set_property(TARGET imported2 PROPERTY INTERFACE_INCLUDE_DIRECTORIES /imported2/include)
+set_property(TARGET imported2 PROPERTY INTERFACE_INCLUDE_DIRECTORIES "/imported2/include/with space")
 
 add_library(imported3 SHARED IMPORTED)
 set_property(TARGET imported3 PROPERTY IMPORTED_LOCATION_RELEASE release_loc)

Tests/GeneratorExpression/check-part3.cmake

@@ -9,7 +9,7 @@ check(test_version_equal_1 "0")
 check(test_version_equal_2 "1")
 
 if(config AND NOT config STREQUAL NoConfig)
-  if(NOT "${test_imported_includes}" MATCHES "^;*/imported[12]/include;*$")
+  if(NOT "${test_imported_includes}" MATCHES "^;*/imported[12]/include/with space;*$")
     message(SEND_ERROR "test_imported_includes is not correct: ${test_imported_includes}")
   endif()
 else()