gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "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"
  ]
}
gn analyze input:
{
  "files": [
    "//libcxx/include/__configuration/attributes.h",
    "//libcxx/test/libcxx/algorithms/specialized_algorithms.compile.pass.cpp",
    "//libcxx/test/libcxx/strings/basic.string/nonnull.verify.cpp",
    "//libcxx/test/libcxx/strings/string.view/nonnull.verify.cpp",
    "//libcxx/test/std/containers/container.adaptors/container.adaptors.format/format.functions.tests.h",
    "//libcxx/test/std/localization/locale.categories/category.numeric/locale.num.get/types.pass.cpp",
    "//libcxx/test/std/localization/locale.categories/category.time/locale.time.get/types.pass.cpp",
    "//libcxx/test/std/localization/locale.categories/category.time/locale.time.put/types.pass.cpp",
    "//libcxx/test/std/localization/locale.stdcvt/codecvt_utf16_length.pass.cpp",
    "//libcxx/test/std/numerics/numeric.ops/numeric.ops.sat/saturating_div.compile.pass.cpp",
    "//libcxx/test/std/numerics/numeric.ops/numeric.ops.sat/saturating_sub.compile.pass.cpp",
    "//libcxx/test/std/re/re.iter/re.tokiter/types.pass.cpp",
    "//libcxx/test/std/re/re.regex/re.regex.const/constants.pass.cpp",
    "//libcxx/test/std/re/re.regex/types.pass.cpp",
    "//libcxx/test/std/re/re.results/re.results.size/max_size.pass.cpp",
    "//libcxx/test/std/re/re.results/types.pass.cpp",
    "//libcxx/test/std/strings/string.view/enable_borrowed_range.compile.pass.cpp",
    "//llvm/docs/GlobalISel/MIRPatterns.md",
    "//llvm/include/llvm/Target/GlobalISel/Combine.td",
    "//llvm/test/TableGen/GlobalISelCombinerEmitter/builtins/builtin-pattern-errors.td",
    "//llvm/test/TableGen/GlobalISelCombinerEmitter/builtins/match-table-hasoneuse.td",
    "//llvm/utils/TableGen/Common/GlobalISel/Patterns.h",
    "//llvm/utils/TableGen/GlobalISelCombinerEmitter.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