Fix the source position recorded for funtion return

Fix the source position recorded for funtion return

Record the function return position as the end of the function source. Don't record function entry and return positions as statement positions.

Added a test for source position for break at function return.

Committed: http://code.google.com/p/v8/source/detail?r=1706

[Kevin Millikin (Chromium), 2009-04-14 07:44:44]

*Ouch*, that was some pretty careless copy and paste on my part.

It looks like we're still recording start and return as statement positions?

[Søren Thygesen Gjesse, 2009-04-14 14:57:31]

On 2009/04/14 07:44:44, Kevin Millikin wrote:
> *Ouch*, that was some pretty careless copy and paste on my part.
> 
> It looks like we're still recording start and return as statement positions?

When doing this change I tried to remove the statement position recording for
these, but it caused assertions for the deferred code generation, so I left it
in. I will try to address it at some point.