gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//lldb/include/lldb/Host/linux/Support.h",
    "//lldb/include/lldb/Host/posix/Support.h",
    "//lldb/source/Host/CMakeLists.txt",
    "//lldb/source/Host/aix/Host.cpp",
    "//lldb/source/Host/linux/Host.cpp",
    "//lldb/source/Host/linux/Support.cpp",
    "//lldb/source/Host/posix/Support.cpp",
    "//lldb/source/Plugins/Process/AIX/NativeProcessAIX.h",
    "//lldb/source/Plugins/Process/Linux/IntelPTCollector.cpp",
    "//lldb/source/Plugins/Process/Linux/NativeProcessLinux.h",
    "//lldb/source/Plugins/Process/Linux/Perf.cpp",
    "//lldb/source/Plugins/Process/Linux/Procfs.cpp",
    "//lldb/unittests/Host/CMakeLists.txt",
    "//lldb/unittests/Host/posix/HostTest.cpp",
    "//lldb/unittests/Host/posix/SupportTest.cpp",
    "//lldb/unittests/Process/Linux/ProcfsTests.cpp",
    "//llvm/utils/gn/secondary/lldb/source/Host/BUILD.gn"
  ],
  "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": []
}