Remove LOCATION_TYPE_ISEQ_CALCED state from Backtrace::Location

Previously Backtrace::Location had two possible states:
LOCATION_TYPE_ISEQ and LOCATION_TYPE_ISEQ_CALCED. The former had the
location information as PC, and the latter had it as lineno.
Once lineno was caluculated, the state was changed to
LOCATION_TYPE_ISEQ_CALCED and the caluculated result was kept.

This change removes LOCATION_TYPE_ISEQ_CALCED, so lineno is calculated
whenever it is needed. It will be slow a little, but lineno is typically
needed only when its backtrace is shown, so I believe that it does not
matter.

This is a preparation to add column information to Backtrace::Location
because PC is needed to caluculate node_id for AST::Node even after
lineno is calculated. This change is approved by ko1.

0 files changed, 0 insertions, 0 deletions