Fix for issue 13272

editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/constant/ValidResult.java

Index: editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/constant/ValidResult.java
diff --git a/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/constant/ValidResult.java b/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/constant/ValidResult.java
index 1ae03bf702c1a15cbe33f2ebd8221622f3b66249..73952f0b753ffd3f52f895cd8bf9b1099409a91e 100644
--- a/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/constant/ValidResult.java
+++ b/editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/constant/ValidResult.java
@@ -96,6 +96,17 @@ public class ValidResult extends EvaluationResultImpl {
     return rightOperand.addToValid(node, this);
   }
 
+  /**
+   * Return the result of applying boolean conversion to this result.
+   * 
+   * @param node the node against which errors should be reported
+   * @return the result of applying boolean conversion to the given value
+   */
+  @Override
+  public EvaluationResultImpl applyBooleanConversion(ASTNode node) {
+    return booleanConversion(node, value);
+  }
+
   @Override
   public EvaluationResultImpl bitAnd(BinaryExpression node, EvaluationResultImpl rightOperand) {
     return rightOperand.bitAndValid(node, this);