reps should handle arrays with properties

for example, regexes return arrays with string properties:
`/a/.exec("ablllkbakjbkjabjbasdfsd")`
but there is no way to see the string properties in the rep.

also, js is annoying for allowing this kind of stupid thing.

Start by reproducing the issue with the regex example `/a/.exec("ablllkbakjbkjabjbasdfsd")` and locate the rep implementation that renders array values. Done means the rep exposes the array's string properties as well as its indexed elements.

Written by the indexing model from the issue text.