Grammar does not accept valid hash key with non-word at the end if colon is not followed by space

[Leonid Shagabutdinov]

Code

{key1:true}
{key?:true}
{key!:true}

Produce (program (hash (ERROR (method_call (identifier) (argument_list (symbol))))))

but it's valid code for ruby interpreter:

irb(main):005:0> {key1:true}
=> {:key1=>true}
irb(main):006:0> {key?:true}
=> {:key?=>true}
irb(main):007:0> {key!:true}
=> {:key!=>true}

[Max Brunsfeld]

I believe this has been fixed. Thanks for the good bug report!