gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//flang-rt/include/flang-rt/runtime/environment.h",
    "//flang-rt/lib/runtime/command.cpp",
    "//flang-rt/lib/runtime/environment.cpp",
    "//flang/docs/Intrinsics.md",
    "//flang/include/flang/Optimizer/Builder/IntrinsicCall.h",
    "//flang/include/flang/Optimizer/Builder/Runtime/Command.h",
    "//flang/include/flang/Runtime/command.h",
    "//flang/lib/Evaluate/intrinsics.cpp",
    "//flang/lib/Optimizer/Builder/IntrinsicCall.cpp",
    "//flang/lib/Optimizer/Builder/Runtime/Command.cpp",
    "//flang/test/Lower/Intrinsics/putenv-func.f90",
    "//flang/test/Lower/Intrinsics/putenv-sub.f90",
    "//flang/test/Semantics/putenv.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": []
}
running all tests due to change to blacklisted file