Compilation with "+ +" raise AV error

[Alex Bespalov]

if try to compile script like

program Test_closure;
var  i: Integer;

begin
i := 5;
PrintLn('Test' + IntToStr(i) + +)
end.

Access violation error raised.

Usually thats raised when autocompilation enabled (like in “Live scripting IDE” demo),.

‌

As my opinion, the solution should be to change line in dwsCompiler.pas

if ResolveOperatorFor(CurrentProg, ttMINUS, nil, Result.Typ) = nil then

to

if not Assigned(Result) or (ResolveOperatorFor(CurrentProg, ttMINUS, nil, Result.Typ) = nil) then

‌

[Eric Grange]

Fixed Issue #239 + test

→ <<cset d2688eba8eeb>>