Visualization query errors hidden

[spalger]

Kibana version: master
Elasticsearch version: master
Original install method (e.g. download page, yum, from source, etc.): source

Describe the bug:

When an invalid query is typed into the filter bar, or a filter aggregation, and sent to Elasticsearch. The error that comes back from elasticsearch is not shown to the user and the app just looks unresponsive.

Steps to reproduce:

1. Create a new visualization
2. In a filter aggregation use the filter :"FOO"
3. Update the visualization

Expected behavior:

The error should be shown to the user so they can fix their query

Errors in browser console (if relevant):

[elasticmachine]

Pinging @elastic/kibana-app

[timroes]

cc @lukeelmers @ppisljar could you check if that's gone once the infrastructure is reverted

[ppisljar]

not happening after revert

[ppisljar]

pipeline_data_loader catches the errors, but doesn't show the toast (the way visualize_data_loader does).
code for error handling should be extracted and used in both.