gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//clang/lib/CIR/CodeGen/CIRGenClass.cpp",
    "//clang/test/CIR/CodeGen/vbase.cpp",
    "//lldb/source/Plugins/SymbolFile/DWARF/DWARFASTParserClang.cpp",
    "//lldb/test/Shell/SymbolFile/DWARF/incomplete-member-beyond-parent-bounds.yaml",
    "//lldb/test/Shell/SymbolFile/DWARF/member-beyond-parent-bounds.yaml",
    "//lldb/test/Shell/SymbolFile/DWARF/member-on-parent-bounds.yaml",
    "//lldb/test/Shell/SymbolFile/DWARF/union-types-no-member-location.yaml",
    "//lldb/test/Shell/SymbolFile/DWARF/zero-sized-member-in-parent-bounds.yaml",
    "//llvm/utils/gn/secondary/llvm/lib/CAS/BUILD.gn",
    "//llvm/utils/gn/secondary/llvm/unittests/CAS/BUILD.gn",
    "//offload/test/mapping/lambda_by_value.cpp",
    "//offload/test/mapping/map_back_race.cpp",
    "//offload/test/mapping/map_both_pointer_pointee.c",
    "//offload/test/mapping/map_ptr_and_star_local.c",
    "//offload/test/mapping/map_structptr_and_member_global.c",
    "//offload/test/mapping/map_structptr_and_member_local.c",
    "//offload/test/offloading/CUDA/basic_launch_multi_arg.cu",
    "//offload/test/offloading/bug51781.c",
    "//offload/test/offloading/fortran/declare-target-automap.f90",
    "//offload/test/offloading/interop.c",
    "//offload/test/offloading/single_threaded_for_barrier_hang_1.c",
    "//offload/test/offloading/single_threaded_for_barrier_hang_2.c",
    "//offload/test/offloading/spmdization.c",
    "//offload/test/sanitizer/ptr_outside_alloc_1.c",
    "//offload/test/sanitizer/ptr_outside_alloc_2.c",
    "//offload/test/sanitizer/use_after_free_1.c",
    "//offload/test/sanitizer/use_after_free_2.c"
  ],
  "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": []
}