Parsing bug with slashes (/) inside brackets ([])

``` coffee
@array = [1,2,3]
@number1 = 4
@number2 = 2
@array[@number1/@number2]
brokenStyling = true # this line won't be parsed properly
```

This is a dummy example, but it breaks coffeescript parsing in TextMate 2. It seems to be related to use slashes inside the array's brackets.

TextMate version 2.0-alpha.9551
OSX 10.9.4

Reproduce the supplied CoffeeScript snippet in TextMate 2 using the reported version and confirm how the line after the array expression is styled or parsed. Trace the bundle's CoffeeScript grammar entry point to isolate slash handling inside brackets; done means the example parses correctly and the following line is styled normally.

Written by the indexing model from the issue text.