[Console] Fields autocomplete suggestions are shown for all indices

[yuliacech]

Currently, the autocomplete suggestions for fields/field are displaying fields for all indices. This is caused by the fact that the property indices is not set in the context. The property index is set to the current index but the function mapping.getMappings is expecting context.indices. This might be a regression from the change in the definitions generation script (here).

To reproduce, use these 2 requests and check the autocomplete suggestions.

PUT field_test/_doc/1
{
  "test": 1
}

GET field_test/_search
{
  "query": {
    "match": {
      "": "TEXT"
    }
  }
}

[elasticmachine]

Pinging @elastic/kibana-management (Team:Kibana Management)