(pascal-mode-syntax-table): _ is now a symbol constituent.

(pascal-mode-syntax-table): _ is now a symbol constituent.
(pascal-indent-case): Removed unnecessary calls to marker-position.
(pascal-indent-declaration): Editing a parameterlist at the end of
a buffer does not hang.  Removed unnecessary call to marker-position.
(pascal-get-lineup-indent): Removed unused variable.
Now indents parameterlist correctly.
(pascal-completion-response): Removed unused variable.