Remove backends.

compiler/java/com/google/dart/compiler/backend/js/ast/JsFor.java

Index: compiler/java/com/google/dart/compiler/backend/js/ast/JsFor.java
diff --git a/compiler/java/com/google/dart/compiler/backend/js/ast/JsFor.java b/compiler/java/com/google/dart/compiler/backend/js/ast/JsFor.java
deleted file mode 100644
index b980d4be1a25580c482a44cd3c1e60f787999453..0000000000000000000000000000000000000000
--- a/compiler/java/com/google/dart/compiler/backend/js/ast/JsFor.java
+++ /dev/null
@@ -1,105 +0,0 @@
-// Copyright (c) 2011, the Dart project authors.  Please see the AUTHORS file
-// for details. All rights reserved. Use of this source code is governed by a
-// BSD-style license that can be found in the LICENSE file.
-
-package com.google.dart.compiler.backend.js.ast;
-
-import com.google.dart.compiler.common.SourceInfo;
-
-/**
- * A <code>for</code> statement. If specified at all, the initializer part is
- * either a declaration of one or more variables, in which case
- * {@link #getInitVars()} is used, or an expression, in which case
- * {@link #getInitExpr()} is used. In the latter case, the comma operator is
- * often used to create a compound expression.
- *
- * <p>
- * Note that any of the parts of the <code>for</code> loop header can be
- * <code>null</code>, although the body will never be null.
- */
-public class JsFor extends JsStatement {
-
-  private JsStatement body;
-  private JsExpression condition;
-  private JsExpression incrExpr;
-  private JsExpression initExpr;
-  private JsVars initVars;
-
-  public JsFor() {
-    super();
-  }
-
-  public JsStatement getBody() {
-    return body;
-  }
-
-  public JsExpression getCondition() {
-    return condition;
-  }
-
-  public JsExpression getIncrExpr() {
-    return incrExpr;
-  }
-
-  public JsExpression getInitExpr() {
-    return initExpr;
-  }
-
-  public JsVars getInitVars() {
-    return initVars;
-  }
-
-  public void setBody(JsStatement body) {
-    this.body = body;
-  }
-
-  public void setCondition(JsExpression condition) {
-    this.condition = condition;
-  }
-
-  public void setIncrExpr(JsExpression incrExpr) {
-    this.incrExpr = incrExpr;
-  }
-
-  public void setInitExpr(JsExpression initExpr) {
-    this.initExpr = initExpr;
-  }
-
-  public void setInitVars(JsVars initVars) {
-    this.initVars = initVars;
-  }
-
-  @Override
-  public void traverse(JsVisitor v, JsContext ctx) {
-    if (v.visit(this, ctx)) {
-      assert (!(initExpr != null && initVars != null));
-
-      if (initExpr != null) {
-        initExpr = v.accept(initExpr);
-      } else if (initVars != null) {
-        initVars = v.accept(initVars);
-      }
-
-      if (condition != null) {
-        condition = v.accept(condition);
-      }
-
-      if (incrExpr != null) {
-        incrExpr = v.accept(incrExpr);
-      }
-      body = v.accept(body);
-    }
-    v.endVisit(this, ctx);
-  }
-
-  @Override
-  public JsFor setSourceRef(SourceInfo info) {
-    super.setSourceRef(info);
-    return this;
-  }
-
-  @Override
-  public NodeKind getKind() {
-    return NodeKind.FOR;
-  }
-}