gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//flang/lib/Lower/Bridge.cpp",
    "//flang/lib/Optimizer/Builder/FIRBuilder.cpp",
    "//flang/test/Lower/do_concurrent.f90",
    "//flang/test/Lower/do_concurrent_local_default_init.f90",
    "//flang/test/Lower/loops.f90",
    "//flang/test/Lower/loops3.f90",
    "//flang/test/Lower/nsw.f90",
    "//flang/test/Transforms/DoConcurrent/basic_host.f90",
    "//flang/test/Transforms/DoConcurrent/locally_destroyed_temp.f90",
    "//flang/test/Transforms/DoConcurrent/loop_nest_test.f90",
    "//flang/test/Transforms/DoConcurrent/multiple_iteration_ranges.f90",
    "//flang/test/Transforms/DoConcurrent/non_const_bounds.f90",
    "//flang/test/Transforms/DoConcurrent/not_perfectly_nested.f90"
  ],
  "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": []
}