gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//libc/docs/getting_started.rst",
    "//libc/docs/index.rst",
    "//libc/docs/uefi/building.rst",
    "//libc/docs/uefi/index.rst",
    "//libc/docs/uefi/support.rst",
    "//libc/docs/uefi/testing.rst",
    "//libc/docs/uefi/using.rst",
    "//mlir/include/mlir-c/AffineExpr.h",
    "//mlir/lib/Bindings/Python/IRAffine.cpp",
    "//mlir/lib/CAPI/IR/AffineExpr.cpp",
    "//mlir/test/python/ir/affine_expr.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": []
}