Fix linking tests with MSVC

If the class is already exported from the library we cannot add the
.cpp file to the test again - MSVC then complains that the symbol is
exported twice (once from the test and once from the library that the
test is linked against)

src/filter/autotests/CMakeLists.txt

@@ -28,7 +28,6 @@ ecm_qt_declare_logging_category(filter_common_SRCS HEADER mailcommon_debug.h IDE
 
 add_mailcommon_filter_test(itemcontexttest
     itemcontexttest.cpp
-    ../itemcontext.cpp
     ${filter_common_SRCS}
 )
 
@@ -279,5 +278,4 @@ add_mailcommon_filter_test(filteractionmissingidentitydialogtest
 
 add_mailcommon_filter_test(filterimporterpathcachetest
     filterimporterpathcachetest.cpp
-    ../filterimporterpathcache.cpp
     )

src/filter/tests/CMakeLists.txt

@@ -74,7 +74,7 @@ target_link_libraries(filteractionmissingtransportdialoggui
   KF5::MailTransport
 )
 
-set(filteractionmissingaccountdialoggui_SRCS filteractionmissingaccountdialoggui.cpp ../../../autotests/dummykernel.cpp ../../filter/kmfilteraccountlist.cpp ../dialog/filteractionmissingaccountdialog.cpp)
+set(filteractionmissingaccountdialoggui_SRCS filteractionmissingaccountdialoggui.cpp ../../../autotests/dummykernel.cpp  ../dialog/filteractionmissingaccountdialog.cpp)
 add_executable(filteractionmissingaccountdialoggui ${filteractionmissingaccountdialoggui_SRCS})
 ecm_mark_as_test(filteractionmissingaccountdialoggui)
 target_link_libraries(filteractionmissingaccountdialoggui

src/mdn/autotests/CMakeLists.txt

@@ -1,4 +1,4 @@
-ecm_add_test(mdnstateattributetest.cpp ../mdnstateattribute.cpp
+ecm_add_test(mdnstateattributetest.cpp
     TEST_NAME mdnattributetest
     NAME_PREFIX "mailcommon-mdn-"
     LINK_LIBRARIES Qt5::Test Qt5::Gui KF5::AkonadiCore KF5::MailCommon

src/search/autotests/CMakeLists.txt

@@ -14,7 +14,6 @@ add_search_autotest(searchruletest
 )
 add_search_autotest(searchrulestatustest
     searchrulestatustest.cpp
-    ../searchrule/searchrulestatus.cpp
 )
 add_search_autotest(searchrulenumericaltest
     searchrulenumericaltest.cpp