Remove backends.

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

Index: compiler/java/com/google/dart/compiler/backend/js/ast/JsVars.java
diff --git a/compiler/java/com/google/dart/compiler/backend/js/ast/JsVars.java b/compiler/java/com/google/dart/compiler/backend/js/ast/JsVars.java
deleted file mode 100644
index 7f2f50f3d51feee6527b0b7bb4a70c798ffcf97e..0000000000000000000000000000000000000000
--- a/compiler/java/com/google/dart/compiler/backend/js/ast/JsVars.java
+++ /dev/null
@@ -1,115 +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;
-import com.google.dart.compiler.common.Symbol;
-
-import java.util.ArrayList;
-import java.util.Iterator;
-import java.util.List;
-
-/**
- * A JavaScript <code>var</code> statement.
- */
-public class JsVars extends JsStatement implements Iterable<JsVars.JsVar> {
-
-  /**
-   * A var declared using the JavaScript <code>var</code> statement.
-   */
-  public static class JsVar extends JsNode implements HasName {
-
-    private final JsName name;
-    private JsExpression initExpr;
-
-    public JsVar(JsName name) {
-      this.name = name;
-    }
-
-    public JsVar(JsName name, JsExpression initExpr) {
-      this.name = name;
-      this.initExpr = initExpr;
-    }
-
-    public JsExpression getInitExpr() {
-      return initExpr;
-    }
-
-    @Override
-    public JsName getName() {
-      return name;
-    }
-
-    @Override
-    public Symbol getSymbol() {
-      return name;
-    }
-
-    public void setInitExpr(JsExpression initExpr) {
-      this.initExpr = initExpr;
-    }
-
-    @Override
-    public void traverse(JsVisitor v, JsContext ctx) {
-      if (v.visit(this, ctx)) {
-        if (initExpr != null) {
-          initExpr = v.accept(initExpr);
-        }
-      }
-      v.endVisit(this, ctx);
-    }
-
-    @Override
-    public JsVar setSourceRef(SourceInfo info) {
-      super.setSourceRef(info);
-      return this;
-    }
-
-    @Override
-    public NodeKind getKind() {
-      return NodeKind.VAR;
-    }
-  }
-
-  private final List<JsVar> vars = new ArrayList<JsVar>();
-
-  public JsVars() {
-  }
-
-  public void add(JsVar var) {
-    vars.add(var);
-  }
-
-  public int getNumVars() {
-    return vars.size();
-  }
-
-  public void insert(JsVar var) {
-    vars.add(var);
-  }
-
-  public boolean isEmpty() {
-    return vars.isEmpty();
-  }
-
-  // Iterator returns JsVar objects
-  @Override
-  public Iterator<JsVar> iterator() {
-    return vars.iterator();
-  }
-
-  @Override
-  public void traverse(JsVisitor v, JsContext ctx) {
-    if (v.visit(this, ctx)) {
-      v.acceptWithInsertRemove(vars);
-    }
-    v.endVisit(this, ctx);
-  }
-
-  @Override
-  public NodeKind getKind() {
-    return NodeKind.VARS;
-  }
-}