gn analyze output:
{
  "compile_targets": [],
  "status": "Found dependency",
  "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"
  ]
}
gn analyze input:
{
  "files": [
    "//clang/lib/Driver/ToolChains/Arch/RISCV.cpp",
    "//clang/lib/Driver/ToolChains/Clang.cpp",
    "//clang/test/Driver/riscv-mtune-tune-features.c",
    "//llvm/lib/Target/X86/X86TargetTransformInfo.cpp",
    "//llvm/test/Analysis/CostModel/X86/zext-gep-index.ll",
    "//llvm/unittests/ExecutionEngine/Orc/SymbolLookupSetTest.cpp"
  ],
  "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": []
}