gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//flang-rt/include/flang-rt/runtime/buffer.h",
    "//flang-rt/include/flang-rt/runtime/descriptor.h",
    "//flang-rt/include/flang-rt/runtime/format-implementation.h",
    "//flang-rt/include/flang-rt/runtime/tools.h",
    "//flang-rt/lib/runtime/array-constructor.cpp",
    "//flang-rt/lib/runtime/assign.cpp",
    "//flang-rt/lib/runtime/character.cpp",
    "//flang-rt/lib/runtime/command.cpp",
    "//flang-rt/lib/runtime/copy.cpp",
    "//flang-rt/lib/runtime/derived.cpp",
    "//flang-rt/lib/runtime/descriptor-io.cpp",
    "//flang-rt/lib/runtime/descriptor.cpp",
    "//flang-rt/lib/runtime/edit-input.cpp",
    "//flang-rt/lib/runtime/extensions.cpp",
    "//flang-rt/lib/runtime/external-unit.cpp",
    "//flang-rt/lib/runtime/extrema.cpp",
    "//flang-rt/lib/runtime/internal-unit.cpp",
    "//flang-rt/lib/runtime/io-error.cpp",
    "//flang-rt/lib/runtime/matmul-transpose.cpp",
    "//flang-rt/lib/runtime/matmul.cpp",
    "//flang-rt/lib/runtime/misc-intrinsic.cpp",
    "//flang-rt/lib/runtime/pseudo-unit.cpp",
    "//flang-rt/lib/runtime/ragged.cpp",
    "//flang-rt/lib/runtime/reduce.cpp",
    "//flang-rt/lib/runtime/stat.cpp",
    "//flang-rt/lib/runtime/temporary-stack.cpp",
    "//flang-rt/lib/runtime/time-intrinsic.cpp",
    "//flang-rt/lib/runtime/tools.cpp",
    "//flang-rt/lib/runtime/transformational.cpp",
    "//flang-rt/lib/runtime/unit-map.cpp",
    "//flang-rt/lib/runtime/unit.cpp",
    "//flang-rt/lib/runtime/work-queue.cpp",
    "//flang/include/flang/Common/Fortran-consts.h",
    "//flang/include/flang/Common/constexpr-bitset.h",
    "//flang/include/flang/Decimal/binary-floating-point.h",
    "//flang/include/flang/Runtime/allocator-registry-consts.h",
    "//flang/include/flang/Runtime/freestanding-tools.h",
    "//flang/include/flang/Runtime/stop.h",
    "//llvm/utils/gn/secondary/libcxx/include/BUILD.gn"
  ],
  "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": []
}
running all tests due to change to blacklisted file