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": [
    "//flang/lib/Frontend/CompilerInvocation.cpp",
    "//llvm/lib/Analysis/DependenceAnalysis.cpp",
    "//llvm/lib/Analysis/Loads.cpp",
    "//llvm/test/Transforms/LoopVectorize/dereferenceable-info-from-assumption-constant-size-needs-loop-guards.ll",
    "//llvm/utils/gn/secondary/clang-tools-extra/clang-reorder-fields/BUILD.gn",
    "//llvm/utils/gn/secondary/libcxx/include/BUILD.gn",
    "//mlir/include/mlir-c/IR.h",
    "//mlir/lib/Bindings/Python/IRCore.cpp",
    "//mlir/lib/CAPI/IR/IR.cpp",
    "//mlir/test/python/ir/operation.py"
  ],
  "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": []
}