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",
    "//lld/test:check-lld",
    "//llvm/test:check-llvm"
  ]
}
gn analyze input:
{
  "files": [
    "//clang/test/CodeGenCXX/debug-info-coff.cpp",
    "//libc/CMakeLists.txt",
    "//libc/cmake/modules/LLVMLibCHeaderRules.cmake",
    "//libc/test/UnitTest/CMakeLists.txt",
    "//llvm/lib/Transforms/Instrumentation/MemorySanitizer.cpp",
    "//llvm/test/Instrumentation/MemorySanitizer/X86/avx2-intrinsics-x86.ll",
    "//llvm/test/Instrumentation/MemorySanitizer/X86/avx512-intrinsics-upgrade.ll",
    "//llvm/test/Instrumentation/MemorySanitizer/X86/avx512-intrinsics.ll",
    "//llvm/test/Instrumentation/MemorySanitizer/X86/avx512vl-intrinsics.ll",
    "//llvm/test/Instrumentation/MemorySanitizer/X86/x86-vpermi2.ll",
    "//llvm/test/Instrumentation/MemorySanitizer/i386/avx2-intrinsics-i386.ll",
    "//llvm/test/tools/llvm-lto2/print-guid.test",
    "//llvm/tools/llvm-lto2/llvm-lto2.cpp",
    "//utils/bazel/llvm-project-overlay/libc/BUILD.bazel"
  ],
  "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": []
}