Avoid potential conflict with local var
Avoid potential conflict with local var

A double `var` declaration would have happened if a ruby local var was named `array_size`.

Added some cleanup work.
wied03/opal,kachick/opal,kachick/opal,jgaskins/opal,opal/opal,iliabylich/opal,Mogztter/opal,kachick/opal,jgaskins/opal,opal/opal,Mogztter/opal,opal/opal,jgaskins/opal,iliabylich/opal,Mogztter/opal,iliabylich/opal,wied03/opal,opal/opal,Mogztter/opal,wied03/opal,kachick/opal