Fix bug in preprocessor listing output: Have to escape line breaks wh…

…en writing the macro name for a macro ref.

Fixed bug which prevented parse of DOWN 1 STREAM StreamName....

Fixed preprocessor DEFINED bug introduced in previous build.

Removed lookahead predicate from exprt (expression term).

I'm sure this will break something, but the predicate was causing Proparse to
hang when processing very long IF THEN ELSE IF THEN ELSE chains.
Please report any new issues! I think this might break some newer syntax where
keywords are (now) allowed to be used as class, method, and property names.

Added support for TABLE-SCAN and LIKE in a METHOD arg.

Added support for TABLE-SCAN and LIKE in a METHOD arg.