ASSIGNMENT: Name resolving

Using the template for the 4th assignment, you should implement name resolving as the first part of the semantic analysis (but ignore name checking of structure and union components - this will be done during type checking next week).

You should upload your solution as a zip file named xxxxxxxx-seman.zip where xxxxxxxx stands for you student identification number.  The contents of the uploaded zip file must have exactly the same directory structure as the template.  The uploaded zip file must contain complete source distribution (including the previous phases), but without antlr and generated files.