gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//flang/lib/Optimizer/Transforms/CUFAddConstructor.cpp",
    "//flang/test/Fir/CUDA/cuda-constructor.f90",
    "//mlir/include/mlir/Dialect/LLVMIR/LLVMOps.td",
    "//mlir/lib/Dialect/LLVMIR/IR/LLVMDialect.cpp",
    "//mlir/lib/Target/LLVMIR/ModuleImport.cpp",
    "//mlir/test/Dialect/LLVMIR/global.mlir",
    "//mlir/test/Dialect/LLVMIR/invalid.mlir",
    "//mlir/test/Target/LLVMIR/Import/global-variables.ll",
    "//mlir/test/Target/LLVMIR/Import/import-failure.ll",
    "//mlir/test/Target/LLVMIR/llvmir.mlir",
    "//mlir/test/mlir-runner/global-constructors.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": []
}