@brief Returns an array containing the complete result.

`graph_query.toArray()`

This function executes the generated query and returns the
entire result as one array.
ToArray does not return the generated query anymore and
hence can only be the endpoint of a query.
However keeping a reference to the query before
executing allows to chain further statements to it.

@EXAMPLES

To collect the entire result of a query toArray can be used:

@EXAMPLE_ARANGOSH_OUTPUT{generalGraphFluentAQLToArray}
  var examples = require("@arangodb/graph-examples/example-graph.js");
  var graph = examples.loadGraph("social");
  var query = graph._vertices();
  query.toArray();
~ examples.dropGraph("social");
@END_EXAMPLE_ARANGOSH_OUTPUT