gn analyze output:
{
  "compile_targets": [],
  "status": "No dependency",
  "test_targets": []
}
gn analyze input:
{
  "files": [
    "//mlir/include/mlir/Dialect/EmitC/IR/EmitC.td",
    "//mlir/include/mlir/Dialect/EmitC/IR/EmitCBase.td",
    "//mlir/test/Dialect/EmitC/canonicalize.mlir",
    "//mlir/test/Dialect/EmitC/form-expressions.mlir",
    "//mlir/test/Dialect/EmitC/invalid_ops.mlir",
    "//mlir/test/Dialect/EmitC/invalid_types.mlir",
    "//mlir/test/Dialect/EmitC/ops.mlir",
    "//mlir/test/Dialect/EmitC/types.mlir",
    "//mlir/test/Target/Cpp/attrs.mlir",
    "//mlir/test/Target/Cpp/call.mlir",
    "//mlir/test/Target/Cpp/common-cpp.mlir",
    "//mlir/test/Target/Cpp/const.mlir",
    "//mlir/test/Target/Cpp/expressions.mlir",
    "//mlir/test/Target/Cpp/invalid.mlir",
    "//mlir/test/Target/Cpp/literal_call_operand.mlir",
    "//mlir/test/Target/Cpp/lvalue.mlir",
    "//mlir/test/Target/Cpp/member.mlir",
    "//mlir/test/Target/Cpp/subscript.mlir",
    "//mlir/test/Target/Cpp/switch.mlir",
    "//mlir/test/Target/Cpp/types.mlir",
    "//mlir/test/Target/Cpp/variable.mlir",
    "//mlir/test/Target/Cpp/verbatim.mlir",
    "//mlir/test/Transforms/sccp.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": []
}