Version 0.5.7.3 .

editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/resolver/ElementResolver.java

Index: editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/resolver/ElementResolver.java
===================================================================
--- editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/resolver/ElementResolver.java	(revision 22658)
+++ editor/tools/plugins/com.google.dart.engine/src/com/google/dart/engine/internal/resolver/ElementResolver.java	(working copy)
@@ -727,6 +727,15 @@
         // TODO(brianwilkerson) Report this error.
         return null;
       }
+      if (element instanceof PropertyAccessorElement && identifier.inSetterContext()) {
+        PropertyInducingElement variable = ((PropertyAccessorElement) element).getVariable();
+        if (variable != null) {
+          PropertyAccessorElement setter = variable.getSetter();
+          if (setter != null) {
+            element = setter;
+          }
+        }
+      }
       // TODO(brianwilkerson) The prefix needs to be resolved to the element for the import that
       // defines the prefix, not the prefix's element.
       recordResolution(identifier, element);