gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//flang/lib/Lower/Bridge.cpp",
    "//flang/lib/Lower/IO.cpp",
    "//flang/test/Fir/convert-to-llvm-openmp-and-fir.fir",
    "//flang/test/Lower/OpenACC/acc-declare.f90",
    "//flang/test/Lower/OpenMP/hlfir-seqloop-parallel.f90",
    "//flang/test/Lower/OpenMP/parallel-private-clause-fixes.f90",
    "//flang/test/Lower/OpenMP/sections-predetermined-private.f90",
    "//flang/test/Lower/OpenMP/shared-loop.f90",
    "//flang/test/Lower/OpenMP/wsloop-reduction-allocatable-array-minmax.f90",
    "//flang/test/Lower/OpenMP/wsloop-variable.f90",
    "//flang/test/Lower/do_loop.f90",
    "//flang/test/Lower/do_loop_unstructured.f90",
    "//flang/test/Lower/infinite_loop.f90",
    "//flang/test/Lower/io-implied-do-fixes.f90",
    "//flang/test/Lower/loops.f90",
    "//flang/test/Lower/loops2.f90",
    "//flang/test/Lower/mixed_loops.f90",
    "//flang/test/Lower/nsw.f90",
    "//flang/test/Transforms/OpenMP/simd-only.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": []
}