gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libc/src/__support/File/file.cpp",
    "//libc/src/__support/File/file.h",
    "//libc/src/__support/File/file_mode.h",
    "//libc/src/__support/File/linux/CMakeLists.txt",
    "//libc/src/__support/File/linux/file.cpp",
    "//libc/src/__support/File/linux/file.h",
    "//libc/src/__support/File/linux/file_flags.h",
    "//libc/src/stdio/fmemopen.cpp",
    "//libc/src/stdio/fopencookie.cpp",
    "//libc/src/stdio/linux/stderr.cpp",
    "//libc/src/stdio/linux/stdin.cpp",
    "//libc/src/stdio/linux/stdout.cpp",
    "//libc/test/src/__support/File/CMakeLists.txt",
    "//libc/test/src/__support/File/file_mode_test.cpp",
    "//libc/test/src/__support/File/file_test.cpp",
    "//llvm/include/llvm/CodeGen/SelectionDAG.h",
    "//utils/bazel/llvm-project-overlay/libc/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": []
}
running all tests due to change to blacklisted file