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": [
    "//llvm/lib/Transforms/Scalar/LoopInterchange.cpp",
    "//llvm/test/Transforms/LoopInterchange/bail-out-one-loop.ll",
    "//llvm/test/Transforms/LoopInterchange/confused-dependence-subnest.ll",
    "//llvm/test/Transforms/LoopInterchange/dependency-matrix-padding.ll",
    "//llvm/test/Transforms/LoopInterchange/large-nested-6d.ll",
    "//llvm/test/Transforms/LoopInterchange/missed-outer-prefix-subnest.ll",
    "//llvm/test/Transforms/LoopInterchange/no-partially-perfect-subnest.ll",
    "//llvm/test/Transforms/LoopInterchange/partially-perfect-loop.ll",
    "//llvm/test/Transforms/LoopInterchange/preserve-sibling-order.ll"
  ],
  "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": []
}