Use LPAR instead of a character in a condition of Parser.hpp

Signed-off-by: Username404 <w.iron.zombie@gmail.com>

src/headers/parsing/Parser.hpp

@@ -83,7 +83,7 @@ namespace Parser {
                                 })
                             ));
                             i += increment;
-                        } else if (next.toktype == '(') {
+                        } else if (next.toktype == LPAR) {
                             parseTree << Call(current.toktext);
                         } else
                             parseTree << Reference(current.toktext);