Issue 4383. Calling field without setter should generate problem

compiler/java/com/google/dart/compiler/resolver/Resolver.java

 // Copyright (c) 2012, 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.resolver;
 
 import com.google.common.annotations.VisibleForTesting;
 import com.google.common.collect.Lists;
 import com.google.common.collect.Sets;
 import com.google.dart.compiler.DartCompilationPhase;
@@ skipping 1375 matching lines @@
     @Override
     public Element visitUnqualifiedInvocation(DartUnqualifiedInvocation x) {
       Scope scope = getContext().getScope();
       Element element = scope.findElement(scope.getLibrary(), x.getTarget().getName());
       ElementKind kind = ElementKind.of(element);
       if (!INVOKABLE_ELEMENTS.contains(kind)) {
         diagnoseErrorInUnqualifiedInvocation(x);
       } else {
         checkInvocationTarget(x, currentMethod, element);
       }
+      if (Elements.isAbstractFieldWithoutGetter(element)) {
+        String name = element.getName();
+        if (isStaticContextOrInitializer()) {
+          onError(x.getTarget(), ResolverErrorCode.USE_ASSIGNMENT_ON_SETTER, name);
+        } else {
+          onError(x.getTarget(), TypeErrorCode.USE_ASSIGNMENT_ON_SETTER, name);
+        }
+      }
       recordElement(x, element);
       recordElement(x.getTarget(), element);
       visit(x.getArguments());
       return null;
     }
 
     @Override
     public Element visitFunctionObjectInvocation(DartFunctionObjectInvocation x) {
       x.getTarget().accept(this);
       visit(x.getArguments());
@@ skipping 803 matching lines @@
           ClassElement currentClass = (ClassElement) constructor.getEnclosingElement();
           if (nextClass == currentClass) {
             return (ConstructorNodeElement) nextConstructorElement;
           }
         }
       }
     }
     return null;
   }
 }