simplify AST (idea like)

src/com/google/dart/compiler/backend/js/ast/JsConditional.java

@@ -4,9 +4,6 @@
 
 package com.google.dart.compiler.backend.js.ast;
 
-/**
- * Represents a JavaScript conditional expression.
- */
 public final class JsConditional extends JsExpressionImpl {
     private JsExpression testExpression;
     private JsExpression elseExpression;

src/com/google/dart/compiler/backend/js/ast/JsContinue.java

@@ -26,9 +26,4 @@ public class JsContinue extends JsNodeImpl implements JsStatement {
     public void accept(JsVisitor v, JsContext context) {
         v.visitContinue(this, context);
     }
-
-    @Override
-    public void acceptChildren(JsVisitor visitor, JsContext context) {
-
-    }
 }

src/com/google/dart/compiler/backend/js/ast/JsDocComment.java

@@ -27,10 +27,6 @@ public class JsDocComment extends JsExpressionImpl {
         v.visitDocComment(this, context);
     }
 
-    @Override
-    public void acceptChildren(JsVisitor visitor, JsContext context) {
-    }
-
     @Override
     public boolean hasSideEffects() {
         return false;

src/com/google/dart/compiler/backend/js/ast/JsEmpty.java

@@ -12,8 +12,4 @@ public class JsEmpty extends JsNodeImpl implements JsStatement {
     public void accept(JsVisitor v, JsContext context) {
         v.visitEmpty(this, context);
     }
-
-    @Override
-    public void acceptChildren(JsVisitor visitor, JsContext context) {
-    }
 }

src/com/google/dart/compiler/backend/js/ast/JsFunction.java

@@ -97,6 +97,6 @@ public final class JsFunction extends JsLiteral implements HasName {
     @Override
     public void acceptChildren(JsVisitor visitor, JsContext context) {
         visitor.acceptWithInsertRemove(params);
-                    body = visitor.accept(body);
+        body = visitor.accept(body);
     }
 }

src/com/google/dart/compiler/backend/js/ast/JsIf.java

@@ -58,9 +58,9 @@ public final class JsIf extends JsNodeImpl implements JsStatement {
     @Override
     public void acceptChildren(JsVisitor visitor, JsContext context) {
         ifExpression = visitor.accept(ifExpression);
-                    thenStatement = visitor.accept(thenStatement);
-                    if (elseStatement != null) {
-                        elseStatement = visitor.accept(elseStatement);
-                    }
+        thenStatement = visitor.accept(thenStatement);
+        if (elseStatement != null) {
+            elseStatement = visitor.accept(elseStatement);
+        }
     }
 }

src/com/google/dart/compiler/backend/js/ast/JsLiteral.java

@@ -102,9 +102,5 @@ public abstract class JsLiteral extends JsExpressionImpl implements CanBooleanEv
         public final boolean isLeaf() {
             return true;
         }
-
-        @Override
-        public void acceptChildren(JsVisitor visitor, JsContext context) {
-        }
     }
 }

src/com/google/dart/compiler/backend/js/ast/JsNameRef.java

@@ -101,7 +101,7 @@ public final class JsNameRef extends JsExpressionImpl implements CanBooleanEval,
     @Override
     public void acceptChildren(JsVisitor visitor, JsContext context) {
         if (qualifier != null) {
-                        qualifier = visitor.accept(qualifier);
-                    }
+            qualifier = visitor.accept(qualifier);
+        }
     }
 }

src/com/google/dart/compiler/backend/js/ast/JsNodeImpl.java

@@ -15,4 +15,8 @@ abstract class JsNodeImpl extends AbstractNode {
     public void setSourceInfo(Object info) {
         sourceInfo = info;
     }
+
+    @Override
+    public void acceptChildren(JsVisitor visitor, JsContext context) {
+    }
 }

src/com/google/dart/compiler/backend/js/ast/JsParameter.java

@@ -30,9 +30,4 @@ public final class JsParameter extends JsNodeImpl implements HasName {
     public void accept(JsVisitor v, JsContext context) {
         v.visitParameter(this, context);
     }
-
-    @Override
-    public void acceptChildren(JsVisitor visitor, JsContext context) {
-
-    }
 }

src/com/google/dart/compiler/backend/js/ast/JsPropertyInitializer.java

@@ -46,6 +46,6 @@ public class JsPropertyInitializer extends JsNodeImpl {
     @Override
     public void acceptChildren(JsVisitor visitor, JsContext context) {
         labelExpr = visitor.accept(labelExpr);
-                    valueExpr = visitor.accept(valueExpr);
+        valueExpr = visitor.accept(valueExpr);
     }
 }