message: Add a address sanitizer configuration in bazelrc.
  To be used as
  bazel test --config=asan ...
diff: @@ -18,3 +18,13 @@ common:macos --features=-supports_dynamic_linker --cxxopt=-std=c++17 --host_cxxo
  # the codebase, so we focus the effort for now is to have a Windows Verible
  # compiled with clang-cl before fixing the issues unique to MSVC.
  common:windows --compiler=clang-cl --cxxopt=/std:c++17 --host_cxxopt=/std:c++17 --client_env=BAZEL_CXXOPTS=/std:c++17
  +
  +# Address sanitizer settings.
  +build:asan --strip=never
  +build:asan --copt -fsanitize=address
  +build:asan --copt -DADDRESS_SANITIZER
  +build:asan --copt -O1
  +build:asan --copt -g
  +build:asan --copt -fno-omit-frame-pointer
  +build:asan --linkopt -fsanitize=address
  +
  