So far I figured that what I typically want to do is
printf("Type: %s", e->type->toChars());
whenever I find a type-deduced expression e that fulfils
(e->loc->linnum == QUERY_LINE &&
e->loc->charnum <= QUERY_COLUMN &&
QUERY_COLUMN < (e->loc->charnum +
e->length_of_expression_in_code))
Can I somehow query the source code range (start end begin
offset/row-column) of an expression?
This of course has to handle sub-expression types which is a
complication I haven't covered here.
So maybe a better feature would be to query for type of
expression before or after point.
