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": [
    "//flang/lib/Lower/Bridge.cpp",
    "//flang/test/Lower/execute_region_wrap_locations.f90",
    "//llvm/docs/LangRef.md",
    "//llvm/lib/Transforms/Scalar/TailRecursionElimination.cpp",
    "//llvm/test/Transforms/TailCallElim/frame-address.ll",
    "//llvm/test/Transforms/TailCallElim/stackrestore.ll",
    "//mlir/lib/Conversion/SCFToControlFlow/SCFToControlFlow.cpp",
    "//mlir/test/Conversion/SCFToControlFlow/execute-region-locations.mlir"
  ],
  "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": []
}