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/__cxx03/regex",
    "//libcxx/include/__cxx03/vector",
    "//libcxx/test/std/containers/sequences/vector/vector.cons/exceptions.pass.cpp",
    "//libcxx/test/std/re/re.regex/re.regex.construct/bad_range.pass.cpp",
    "//llvm/lib/CodeGen/GlobalISel/GISelValueTracking.cpp",
    "//llvm/lib/CodeGen/SelectionDAG/SelectionDAG.cpp",
    "//llvm/test/CodeGen/AArch64/GlobalISel/knownbits-add.mir",
    "//llvm/unittests/Target/AArch64/AArch64SelectionDAGTest.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": []
}