Submitted by: @asfernandes

------
execute block
as
declare n integer;
begin
if (1 = 1) then
n = 1;
n = n / 0;
end!

Statement failed, SQLSTATE = 22012
arithmetic exception, numeric overflow, or string truncation
-Integer divide by zero. The code attempted to divide an integer value by an integer divisor of zero.
-At block line: 5, col: 5
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The correct (line, column) of the error should be (7, 5).

I've tracked this as a regression introduced with CORE5183 fix but the actual problem is the way we used to get positions when backtrack happens.

Commits: dfcb0ba 1d70384