Add ability to migrate hydration based on type conditions

[gnawf]

Passes virtualField to the polymorphic hydration hook so we can decide which instruction to use based on the type fragments present.

[github-actions]

Test Results

  558 files  +2    558 suites  +2   1m 0s ⏱️ -3s
1 867 tests +4  1 382 ✅ +2  485 💤 +2  0 ❌ ±0 
1 875 runs  +4  1 390 ✅ +2  485 💤 +2  0 ❌ ±0 

Results for commit db3b912. ± Comparison against base commit a215479.

[gnawf]

Response is

{
  "data": {
    "nothing": {
      "object": {
        "__typename": "NewObject"
      }
    },
    "old_query": {
      "object": {
        "__typename": "OldObject",
        "id": "ari:cloud:owner::type/1"
      }
    },
    "new_query": {
      "object": {
        "__typename": "NewObject",
        "id": "ari:cloud:owner::type/1"
      }
    },
    "both_query": {
      "object": {
        "__typename": "NewObject",
        "id": "ari:cloud:owner::type/1"
      }
    },
    "migrate_off": {
      "object": {
        "__typename": "OldObject",
        "id": "ari:cloud:owner::type/1"
      }
    },
    "migrate_on": {
      "object": {
        "__typename": "NewObject",
        "id": "ari:cloud:owner::type/1"
      }
    }
  }
}