Pass lookup_name_info to block_lookup_symbol_primary

Pass lookup_name_info to block_lookup_symbol_primary

This changes block_lookup_symbol_primary to accept a lookup_name_info.
This follows the general trend of hoisting these objects to the
outermost layer where they make sense -- somewhat reducing the cost of
using them.

Acked-By: Simon Marchi <simon.marchi@efficios.com>