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": [
    "//clang/docs/ReleaseNotes.rst",
    "//clang/lib/AST/Comment.cpp",
    "//clang/lib/ExtractAPI/DeclarationFragments.cpp",
    "//clang/test/ExtractAPI/constructor_destructor.cpp",
    "//clang/test/Sema/warn-documentation.cpp",
    "//llvm/lib/Analysis/InstructionSimplify.cpp",
    "//llvm/lib/Analysis/ValueTracking.cpp",
    "//offload/unittests/OffloadAPI/device_code/CMakeLists.txt",
    "//offload/unittests/OffloadAPI/device_code/localmem.c",
    "//offload/unittests/OffloadAPI/device_code/localmem_reduction.c",
    "//offload/unittests/OffloadAPI/device_code/localmem_static.c",
    "//offload/unittests/OffloadAPI/kernel/olLaunchKernel.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": []
}