Merged in pa2 and updated test scripts

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

@@ -5,6 +5,7 @@ import java_cup.runtime.ComplexSymbolFactory.Location;
 
 import java.util.List;
 
+
 /** Indefinite repetition construct. */
 public class WhileStmt extends Stmt {
     /** Test for whether to continue. */
@@ -19,6 +20,7 @@ public class WhileStmt extends Stmt {
         this.body = body;
     }
 
+
     public <T> T dispatch(NodeAnalyzer<T> analyzer) {
         return analyzer.analyze(this);
     }