Added /ZI in MSVC to test if it breaks anything.

Author: FranckRJ

tests/CMakeLists.txt

@@ -39,7 +39,7 @@ target_link_libraries(FakeIt_tests PRIVATE
 if(CMAKE_CXX_COMPILER_ID STREQUAL "GNU" OR CMAKE_CXX_COMPILER_ID MATCHES "^(Apple)?Clang$")
     target_compile_options(FakeIt_tests PRIVATE -Wall -Wextra -Wno-ignored-qualifiers -O0 -g3)
 elseif(MSVC)
-    target_compile_options(FakeIt_tests PRIVATE /W3 /sdl /Od)
+    target_compile_options(FakeIt_tests PRIVATE /W3 /sdl /Od /ZI)
 
     if("${CMAKE_GENERATOR_PLATFORM}" STREQUAL "x64")
         target_compile_definitions(FakeIt_tests PRIVATE FAKEIT_DISABLE_RTTI_DEPENDENT_TESTS)