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": [
    "//compiler-rt/lib/sanitizer_common/sanitizer_procmaps_mac.cpp",
    "//compiler-rt/lib/sanitizer_common/tests/sanitizer_procmaps_mac_test.cpp",
    "//llvm/lib/Target/AArch64/AArch64TargetTransformInfo.cpp",
    "//llvm/test/Analysis/CostModel/AArch64/fshl.ll",
    "//llvm/test/Analysis/CostModel/AArch64/fshr.ll",
    "//llvm/test/Transforms/LoopVectorize/outer-loop-inner-latch-successors.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": []
}