gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//clang/test/CodeGen/allow-ubsan-check.c",
    "//libc/config/linux/aarch64/entrypoints.txt",
    "//libc/config/linux/x86_64/entrypoints.txt",
    "//libc/hdr/types/CMakeLists.txt",
    "//libc/hdr/types/struct_iovec.h",
    "//libc/include/CMakeLists.txt",
    "//libc/include/sys/uio.h.def",
    "//libc/include/sys/uio.yaml",
    "//libc/src/sys/CMakeLists.txt",
    "//libc/src/sys/uio/CMakeLists.txt",
    "//libc/src/sys/uio/linux/CMakeLists.txt",
    "//libc/src/sys/uio/linux/writev.cpp",
    "//libc/src/sys/uio/writev.h",
    "//libc/test/src/sys/CMakeLists.txt",
    "//libc/test/src/sys/uio/CMakeLists.txt",
    "//libc/test/src/sys/uio/writev_test.cpp"
  ],
  "test_targets": [
    "//clang-tools-extra/clangd/test:check-clangd",
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ],
  "additional_compile_targets": []
}
running all tests due to change to blacklisted file