gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//mlir/include/mlir-c/Dialect/Transform.h",
    "//mlir/include/mlir-c/Interfaces.h",
    "//mlir/include/mlir/Bindings/Python/IRInterfaces.h",
    "//mlir/include/mlir/CAPI/Interfaces.h",
    "//mlir/lib/Bindings/Python/DialectTransform.cpp",
    "//mlir/lib/Bindings/Python/IRInterfaces.cpp",
    "//mlir/lib/CAPI/Dialect/Transform.cpp",
    "//mlir/lib/CAPI/Interfaces/Interfaces.cpp",
    "//mlir/python/mlir/dialects/ext.py",
    "//mlir/test/CAPI/CMakeLists.txt",
    "//mlir/test/CAPI/ir.c",
    "//mlir/test/CAPI/transform.c",
    "//mlir/test/python/dialects/ext.py",
    "//mlir/test/python/dialects/memory_effects_op_interface.py",
    "//mlir/test/python/dialects/transform_op_interface.py"
  ],
  "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": []
}