gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//utils/bazel/llvm-project-overlay/libc/test/libc_test_rules.bzl",
    "//utils/bazel/llvm-project-overlay/libc/test/src/complex/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/fenv/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/inttypes/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/math/libc_math_test_rules.bzl",
    "//utils/bazel/llvm-project-overlay/libc/test/src/stdbit/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/stdio/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/stdlib/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/string/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/strings/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/sys/epoll/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/sys/socket/BUILD.bazel",
    "//utils/bazel/llvm-project-overlay/libc/test/src/unistd/BUILD.bazel"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//compiler-rt/test/hwasan:check-hwasan",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}