Offset of body's first character within the text scopeBlocks was given
— i.e. one past the opening {.
Without it a caller that re-segments body gets BODY-RELATIVE offsets and
no way to rebase them, so a span or region found inside a do={…} cannot
be reported in document space. pathresolve is that caller.
One depth-0 scope block found in a statement: its name and raw body text.