Ternary operator support for polymer_expressions

pkg/polymer_expressions/lib/visitor.dart

Index: pkg/polymer_expressions/lib/visitor.dart
diff --git a/pkg/polymer_expressions/lib/visitor.dart b/pkg/polymer_expressions/lib/visitor.dart
index 4fafa7b5875bd3574a90d091902e0dd6f6ad7a98..cf2626e6ec45837f7531a1a131e335d5b43047bf 100644
--- a/pkg/polymer_expressions/lib/visitor.dart
+++ b/pkg/polymer_expressions/lib/visitor.dart
@@ -19,6 +19,7 @@ abstract class Visitor {
   visitIdentifier(Identifier i);
   visitBinaryOperator(BinaryOperator o);
   visitUnaryOperator(UnaryOperator o);
+  visitTernaryOperator(TernaryOperator o);
   visitInExpression(InExpression c);
 }
 
@@ -81,6 +82,13 @@ abstract class RecursiveVisitor extends Visitor {
     visitExpression(o);
   }
 
+  visitTernaryOperator(TernaryOperator o) {
+    visit(o.condition);
+    visit(o.trueExpr);
+    visit(o.falseExpr);
+    visitExpression(o);
+  }
+
   visitInExpression(InExpression c) {
     visit(c.left);
     visit(c.right);