set_connector_hash(): Return true iff real suffix_id's got generated
set_connector_hash(): Return true iff real suffix_id's got generated

This will be used to find out if the  count connector table of
parsing with no nulls can be reused when later parsing with nulls.
This is possible only if real suffix_id's got generated because only
then the previous suffix_id's values are preserved.

linas/link-grammar,linas/link-grammar,opencog/link-grammar,opencog/link-grammar,opencog/link-grammar,opencog/link-grammar,linas/link-grammar,linas/link-grammar,ampli/link-grammar,opencog/link-grammar,opencog/link-grammar,linas/link-grammar,opencog/link-grammar,ampli/link-grammar,opencog/link-grammar,ampli/link-grammar,ampli/link-grammar,linas/link-grammar,ampli/link-grammar,ampli/link-grammar,linas/link-grammar,opencog/link-grammar,ampli/link-grammar,ampli/link-grammar,linas/link-grammar,linas/link-grammar,ampli/link-grammar