gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libc/test/include/assert_test.cpp",
    "//libc/test/include/complex_test.cpp",
    "//libc/test/include/fpclassify_test.c",
    "//libc/test/include/fpclassify_test.cpp",
    "//libc/test/include/fpclassifyf_test.cpp",
    "//libc/test/include/fpclassifyl_test.cpp",
    "//libc/test/include/header-test-template.c",
    "//libc/test/include/iscanonical_test.c",
    "//libc/test/include/isfinite_test.c",
    "//libc/test/include/isfinite_test.cpp",
    "//libc/test/include/isfinitef_test.cpp",
    "//libc/test/include/isfinitel_test.cpp",
    "//libc/test/include/isinf_test.c",
    "//libc/test/include/isinf_test.cpp",
    "//libc/test/include/isinff_test.cpp",
    "//libc/test/include/isinfl_test.cpp",
    "//libc/test/include/isnan_test.c",
    "//libc/test/include/isnan_test.cpp",
    "//libc/test/include/isnanf_test.cpp",
    "//libc/test/include/isnanl_test.cpp",
    "//libc/test/include/isnormal_test.c",
    "//libc/test/include/isnormal_test.cpp",
    "//libc/test/include/isnormalf_test.cpp",
    "//libc/test/include/isnormall_test.cpp",
    "//libc/test/include/issignaling_test.c",
    "//libc/test/include/issubnormal_test.c",
    "//libc/test/include/issubnormal_test.cpp",
    "//libc/test/include/issubnormalf_test.cpp",
    "//libc/test/include/issubnormall_test.cpp",
    "//libc/test/include/iszero_test.c",
    "//libc/test/include/iszero_test.cpp",
    "//libc/test/include/iszerof_test.cpp",
    "//libc/test/include/iszerol_test.cpp",
    "//libc/test/include/signbit_test.c",
    "//libc/test/include/signbit_test.cpp",
    "//libc/test/include/signbitf_test.cpp",
    "//libc/test/include/signbitl_test.cpp",
    "//libc/test/include/stdbit_stub.h",
    "//libc/test/include/stdbit_test.c",
    "//libc/test/include/stdbit_test.cpp",
    "//libc/test/include/stdckdint_test.cpp",
    "//libc/test/include/sys/queue_test.cpp"
  ],
  "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