gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//clang/lib/CIR/CodeGen/CIRGenClass.cpp",
    "//lldb/include/lldb/Utility/Listener.h",
    "//lldb/source/Plugins/Language/CPlusPlus/CMakeLists.txt",
    "//lldb/source/Plugins/Language/CPlusPlus/CPlusPlusLanguage.cpp",
    "//lldb/source/Plugins/Language/CPlusPlus/MsvcStl.h",
    "//lldb/source/Plugins/Language/CPlusPlus/MsvcStlTuple.cpp",
    "//lldb/source/Utility/Broadcaster.cpp",
    "//lldb/source/Utility/Listener.cpp",
    "//lldb/test/API/functionalities/data-formatter/data-formatter-stl/generic/tuple/TestDataFormatterStdTuple.py",
    "//lldb/test/API/functionalities/data-formatter/data-formatter-stl/generic/tuple/main.cpp",
    "//lldb/unittests/Utility/ListenerTest.cpp",
    "//llvm/utils/gn/secondary/lldb/source/Plugins/Language/CPlusPlus/BUILD.gn",
    "//llvm/utils/gn/secondary/llvm/unittests/BinaryFormat/BUILD.gn"
  ],
  "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": []
}