Merged in PA1

src/main/java/chocopy/common/astnodes/Errors.java

@@ -7,6 +7,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
 
 import java.util.List;
 
+
 /** Collects the error messages in a Program. There is exactly one per Program node. */
 public class Errors extends Node {
 
@@ -26,11 +27,13 @@ public class Errors extends Node {
         allowMultipleErrors = true;
     }
 
+
     /** Return true iff there are any errors. */
     public boolean hasErrors() {
         return !this.errors.isEmpty();
     }
 
+
     /** Prevent multiple semantic errors on the same node. */
     public void suppressMultipleErrors() {
         allowMultipleErrors = false;