[fpc-pascal] Feature "Multiline strings" added

[Michalis Kamburelis]

> But pas2js exists, I believe it is important, and that explains my decision.

OK. I will have to accept this decision :) Well I see your arguments
(Pas2js compatibility + you feel Delphi design is "horror" :) ). Even
if I do see a different decision as more optimal.

For the sake of clarity, I don't really agree with your statement
"""The 'less confusion' argument is invalidated if you apply it
randomly to some particular feature and not to others.""". That is: We
do not need to achieve perfect alignment with Delphi in all features,
and it's not something I propose, and even if I would push for it some
day -- I would say this would have to work both ways (that is, Delphi
should also adjust to some decisions from FPC). But that's a
discussion for other thread(s). I think that "aligning with Delphi" in
this case, multi-line strings (without extrapolating it into any
general rule "we resign from FPC-specific language features") has
value. We would not follow alignment with Delphi "randomly" -- we
would follow alignment when it is easy to achieve (2 syntaxes for
multi-line strings achieve the same feature, *and* it it not a feature
yet used by FPC developers, only in Pas2js).

Anyhow, that was just for clarity :) I believe I understand your point
of view, that's OK.

To be clear, I fully agree that Pas2js, FPC+WebAssembly, are very
important. Bringing Pascal to the web browser is a big achievement of
FPC/Pas2js developers, and we love it in Castle Game Engine :)

Regards,
Michalis