CMake: Consolidate all options to the root of the project

CMakeLists.txt

@@ -16,6 +16,11 @@ set(CMAKE_EXPORT_COMPILE_COMMANDS ON)
 
 set(SERENITY_ARCH "i686" CACHE STRING "Target architecture for SerenityOS.")
 
+option(ENABLE_ADDRESS_SANITIZER "Enable address sanitizer testing in gcc/clang" FALSE)
+option(ENABLE_MEMORY_SANITIZER "Enable memory sanitizer testing in gcc/clang" FALSE)
+option(ENABLE_UNDEFINED_SANITIZER "Enable undefined behavior sanitizer testing in gcc/clang" FALSE)
+option(ENABLE_FUZZER_SANITIZER "Enable fuzzer sanitizer testing in clang" FALSE)
+
 add_custom_target(run
     COMMAND ${CMAKE_SOURCE_DIR}/Meta/run.sh
     USES_TERMINAL

Meta/Lagom/CMakeLists.txt

@@ -11,25 +11,21 @@ endif()
 if ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang")
     set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wconsumed -Wno-overloaded-virtual")
 
-    option(ENABLE_ADDRESS_SANITIZER "Enable address sanitizer testing in gcc/clang" FALSE)
     if (ENABLE_ADDRESS_SANITIZER)
         add_definitions(-fsanitize=address -fno-omit-frame-pointer)
         set(LINKER_FLAGS "${LINKER_FLAGS} -fsanitize=address")
     endif()
 
-    option(ENABLE_MEMORY_SANITIZER "Enable memory sanitizer testing in gcc/clang" FALSE)
     if (ENABLE_MEMORY_SANITIZER)
         add_definitions(-fsanitize=memory -fsanitize-memory-track-origins -fno-omit-frame-pointer)
         set(LINKER_FLAGS "${LINKER_FLAGS} -fsanitize=memory -fsanitize-memory-track-origins")
     endif()
 
-    option(ENABLE_UNDEFINED_SANITIZER "Enable undefined behavior sanitizer testing in gcc/clang" FALSE)
     if (ENABLE_UNDEFINED_SANITIZER)
         add_definitions(-fsanitize=undefined -fno-omit-frame-pointer)
         set(LINKER_FLAGS "${LINKER_FLAGS} -fsanitize=undefined")
     endif()
 
-    option(ENABLE_FUZZER_SANITIZER "Enable fuzzer sanitizer testing in clang" FALSE)
     if (ENABLE_FUZZER_SANITIZER)
         add_definitions(-fsanitize=fuzzer -fno-omit-frame-pointer)
         set(LINKER_FLAGS "${LINKER_FLAGS} -fsanitize=fuzzer")