pkg/vm/lib/transformations/type_flow/entry_points_extra.json

{
  "roots": [
    {
      "library": "dart:core",
      "class": "_Closure",
      "name": "_instantiator_type_arguments",
      "action": "get"
    },
    {
      "library": "dart:core",
      "class": "_Closure",
      "name": "_function_type_arguments",
      "action": "get"
    },
    {
      "library": "dart:core",
      "class": "_Closure",
      "name": "_delayed_type_arguments",
      "action": "get"
    },
    {
      "library": "dart:core",
      "class": "_Closure",
      "name": "_function",
      "action": "get"
    },
    {
      "library": "dart:core",
      "class": "_Closure",
      "name": "_context",
      "action": "get"
    },
    {
      "library": "dart:core",
      "class": "_Closure",
      "name": "_hash",
      "action": "get"
    }
  ]
}