Fix escript:foldl/3 for beam and archive files

[Tuncer Ayaz]

This adapts the other two case clauses in escript:foldl/3 to
the changes introduced by Hakan Mattson for
OTP-8434  Improved handling of typed records in escripts
in 6af2ac91005276add18b1c9bbf4c8fe4f8c6e040.
A partial fix has already been applied by Hakan in
4ec4a06edb5baaa0af2840943230c4a0be3a93cf.

git fetch git://github.com/tuncer/otp.git escript_foldl