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/lib/StaticAnalyzer/Checkers/WebKit/PtrTypesSemantics.cpp",
    "//clang/test/Analysis/Checkers/WebKit/uncounted-lambda-captures-co_await-assertion-failure.cpp",
    "//libc/src/__support/OSUtil/linux/fcntl.cpp",
    "//libc/test/src/fcntl/fcntl_test.cpp",
    "//llvm/lib/Transforms/Vectorize/VPlanTransforms.cpp",
    "//llvm/test/Transforms/LoopVectorize/AArch64/transform-narrow-interleave-to-widen-memory-with-wide-ops-chained.ll",
    "//llvm/test/lit.cfg.py",
    "//llvm/utils/gn/secondary/llvm/lib/Analysis/BUILD.gn",
    "//llvm/utils/profcheck-xfail.txt"
  ],
  "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": []
}