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More Code Hinting Bug Fixes

I discovered a couple of bugs with the code hinting this week.
  1. In some cases when you have constructs with a slash such as \d and \w at the beginning and end of an expression, then the code hinting for the parenthesis wouldn't work properly in the middle of the expression.
  2. If you type out the first few characters of an expression and then select it from the code hinting list, it wouldn't always put the caret in the right spot. Again this was most often seen when typing in the middle of the expression.
I'm glad to say that both of these issues are now fixed.

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