Removed Polymer from Observatory deps

packages/polymer_expressions/lib/visitor.dart

Index: packages/polymer_expressions/lib/visitor.dart
diff --git a/packages/polymer_expressions/lib/visitor.dart b/packages/polymer_expressions/lib/visitor.dart
deleted file mode 100644
index 7bf8053854e814224dc8d901f5788a669164693f..0000000000000000000000000000000000000000
--- a/packages/polymer_expressions/lib/visitor.dart
+++ /dev/null
@@ -1,133 +0,0 @@
-// Copyright (c) 2013, 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.
-
-library polymer_expressions.visitor;
-
-import 'expression.dart';
-
-abstract class Visitor {
-  visit(Expression s) => s.accept(this);
-  visitEmptyExpression(EmptyExpression e);
-  visitParenthesizedExpression(ParenthesizedExpression e);
-  visitGetter(Getter i);
-  visitIndex(Index i);
-  visitInvoke(Invoke i);
-  visitLiteral(Literal l);
-  visitListLiteral(ListLiteral l);
-  visitMapLiteral(MapLiteral l);
-  visitMapLiteralEntry(MapLiteralEntry l);
-  visitIdentifier(Identifier i);
-  visitBinaryOperator(BinaryOperator o);
-  visitUnaryOperator(UnaryOperator o);
-  visitTernaryOperator(TernaryOperator o);
-  visitInExpression(InExpression c);
-  visitAsExpression(AsExpression c);
-}
-
-class RecursiveVisitor extends Visitor {
-  preVisitExpression(Expression e) {}
-  visitExpression(Expression e) {}
-
-  visitEmptyExpression(EmptyExpression e) {
-    preVisitExpression(e);
-    visitExpression(e);
-  }
-
-  visitParenthesizedExpression(ParenthesizedExpression e) {
-    preVisitExpression(e);
-    visit(e.child);
-    visitExpression(e);
-  }
-
-  visitGetter(Getter i) {
-    preVisitExpression(i);
-    visit(i.receiver);
-    visitExpression(i);
-  }
-
-  visitIndex(Index i) {
-    preVisitExpression(i);
-    visit(i.receiver);
-    visit(i.argument);
-    visitExpression(i);
-  }
-
-  visitInvoke(Invoke i) {
-    preVisitExpression(i);
-    visit(i.receiver);
-    if (i.arguments != null) {
-      for (var a in i.arguments) {
-        visit(a);
-      }
-    }
-    visitExpression(i);
-  }
-
-  visitLiteral(Literal l) {
-    preVisitExpression(l);
-    visitExpression(l);
-  }
-
-  visitListLiteral(ListLiteral l) {
-    preVisitExpression(l);
-    for (var i in l.items) {
-      visit(i);
-    }
-    visitExpression(l);
-  }
-
-  visitMapLiteral(MapLiteral l) {
-    preVisitExpression(l);
-    for (var e in l.entries) {
-      visit(e);
-    }
-    visitExpression(l);
-  }
-
-  visitMapLiteralEntry(MapLiteralEntry e) {
-    preVisitExpression(e);
-    visit(e.key);
-    visit(e.entryValue);
-    visitExpression(e);
-  }
-
-  visitIdentifier(Identifier i) {
-    preVisitExpression(i);
-    visitExpression(i);
-  }
-
-  visitBinaryOperator(BinaryOperator o) {
-    preVisitExpression(o);
-    visit(o.left);
-    visit(o.right);
-    visitExpression(o);
-  }
-
-  visitUnaryOperator(UnaryOperator o) {
-    preVisitExpression(o);
-    visit(o.child);
-    visitExpression(o);
-  }
-
-  visitTernaryOperator(TernaryOperator o) {
-    preVisitExpression(o);
-    visit(o.condition);
-    visit(o.trueExpr);
-    visit(o.falseExpr);
-    visitExpression(o);
-  }
-
-  visitInExpression(InExpression c) {
-    preVisitExpression(c);
-    visit(c.left);
-    visit(c.right);
-    visitExpression(c);
-  }
-
-  visitAsExpression(AsExpression c) {
-    visit(c.left);
-    visit(c.right);
-    visitExpression(c);
-  }
-}