Fix for br962 - pop from dynamic array is not padded to correct width.
Fix for br962 - pop from dynamic array is not padded to correct width.

When the expression width is greater than the dynamic array width,
we need to generate code to pad the popped value to the correct
width.

themperek/iverilog,themperek/iverilog,themperek/iverilog,CastMi/iverilog,CastMi/iverilog,CastMi/iverilog