Summary:
This diff distinguishes array declaration and size-setting in trace. For example, when there is an
assume statement on an array size, the array size can be pruned to another value. In which case, we
want to see "Set array size" in the trace, instead of "Array declaration".
Reviewed By: jvillard
Differential Revision: D20914930
fbshipit-source-id: 0253fb69e