gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//llvm/lib/ObjCopy/Archive.cpp",
    "//llvm/lib/ObjCopy/COFF/COFFObject.cpp",
    "//llvm/lib/ObjCopy/ELF/ELFObjcopy.cpp",
    "//llvm/lib/ObjCopy/ELF/ELFObject.cpp",
    "//llvm/lib/ObjCopy/MachO/MachOReader.cpp",
    "//llvm/lib/ObjCopy/MachO/MachOWriter.cpp",
    "//llvm/lib/ObjCopy/ObjCopy.cpp",
    "//llvm/lib/ObjCopy/XCOFF/XCOFFObjcopy.cpp",
    "//llvm/lib/ObjCopy/wasm/WasmObject.cpp",
    "//llvm/lib/ObjCopy/wasm/WasmWriter.cpp"
  ],
  "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": []
}