gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "test_targets": [
    "//clang-tools-extra/test:check-clang-tools",
    "//clang/test:check-clang",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//.github/workflows/llvm-project-tests.yml",
    "//libcxx/include/sstream",
    "//llvm/lib/CodeGen/SelectionDAG/TargetLowering.cpp",
    "//llvm/test/CodeGen/AArch64/arm64-zip.ll",
    "//llvm/test/CodeGen/AArch64/vselect-ext.ll",
    "//llvm/test/CodeGen/RISCV/opt-w-instrs.mir",
    "//llvm/test/CodeGen/SystemZ/vec-perm-14.ll",
    "//llvm/test/CodeGen/X86/test-shrink-bug.ll",
    "//llvm/test/CodeGen/X86/vec_setcc.ll",
    "//polly/lib/Transform/ScheduleOptimizer.cpp",
    "//polly/test/ScheduleOptimizer/schedule_computeout.ll"
  ],
  "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": []
}