Merge remote-tracking branch 'origin/master'

src/main/java/astGenerator/ASTGenerator.java

@@ -68,7 +68,7 @@ public class ASTGenerator extends DecafBaseVisitor<Node> {
     public Node visitConstuctorDecl(DecafParser.ConstuctorDeclContext ctx) {
         String name = ctx.Identifier().getText();
         ParameterList parameterList = (ParameterList) visit(ctx.parameterList());
-        return new MethodDecl("", "", name, parameterList, new BlockStatement(new ArrayList<>(), "void"));
+        return new MethodDecl("", null, name, parameterList, new BlockStatement(new ArrayList<>(), "void"));
     }
 
     @Override