ASORT / DELETE bug in 3.1.0?

[Katherine Wasserman]

I'm not quite sure you would consider this a bug, and it has an easy 
work-around, but there seems to be a problem with the use of 'asort' and 
'delete' when called this way:

--------------------------------------------------------------------
BEGIN {
 b()
}

function a()
{ asort(x)
}

function b()
{ delete x
}
-----------------------------------------------------------------

I've tested this only in 3.1.0 and it gives the error:  "fatal: delete: 
illegal use of variable `x' as array"

If 'delete' comes before 'asort', syntactically no error is reported.  It 
appears that the parser thinks that 'x' is a scalar because it's use in 
'asort'.

Thanks,

Katie