Proposal: Support for Return? construct

This would be a convenience/delighter to clean things up a bit.

`Return? x` would simply return x if x is not nothing and would proceed if x is nothing.

Example:

*** AS-IS NOW ***
```
Dim res = ResolveRoute(c, d, r)

If res IsNot Nothing Then
Return res
End If

'do something else
```

*** PROPOSED ***
```
Return? ResolveRoute(c, d, r)

'do something else
```

Just a simple one in the name of efficiency!