message: Update to flags in fuzzing-cmake file
diff: @@ -18,7 +18,9 @@ message(STATUS "FLATBUFFERS_MAX_PARSING_DEPTH: ${FLATBUFFERS_MAX_PARSING_DEPTH}"
  # MemorySanitizer will not work out-of-the-box, and will instead report false
  # positives coming from uninstrumented code. Need to re-build both C++ standard
  # library: https://github.com/google/sanitizers/wiki/MemorySanitizerLibcxxHowTo
  -option(USE_MSAN "Use MSAN instead of ASASN" OFF)
  +option(USE_ASAN "Use fuzzers with ASASN" OFF)
  +option(USE_MSAN "Use fuzzers with MSASN" OFF)
  +option(OSS_FUZZ "Set this option to use flags by oss-fuzz" OFF)
  # Use Clang linker.
  set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -fuse-ld=lld")
  @@ -51,24 +53,31 @@ target_compile_options(
  fuzzer_config
  INTERFACE
  -fsanitize-coverage=edge,trace-cmp
  - $<$<BOOL:NOT ${USE_MSAN}>:
  + $<$<BOOL:${USE_ASAN}>:
  -fsanitize=fuzzer,undefined,address
  >
  $<$<BOOL:${USE_MSAN}>:
  -fsanitize=fuzzer,undefined,memory
  -fsanitize-memory-track-origins=2
  >
  + $<$<BOOL:${OSS_FUZZ}>:
  + ${CXX}
  + ${CXXFLAGS}
  + >
  )
  target_link_libraries(
  fuzzer_config
  INTERFACE
  - $<$<BOOL:NOT ${USE_MSAN}>:
  + $<$<BOOL:${USE_ASAN}>:
  -fsanitize=fuzzer,undefined,address
  >
  $<$<BOOL:${USE_MSAN}>:
  -fsanitize=fuzzer,undefined,memory
  >
  + $<$<BOOL:${OSS_FUZZ}>:
  + $ENV{LIB_FUZZING_ENGINE}
  + >
  )
  set(FLATBUFFERS_DIR "${CMAKE_CURRENT_SOURCE_DIR}/../../")
  