Fix dartbug.com/11010.

sdk/lib/_internal/compiler/implementation/resolution/members.dart

Index: sdk/lib/_internal/compiler/implementation/resolution/members.dart
diff --git a/sdk/lib/_internal/compiler/implementation/resolution/members.dart b/sdk/lib/_internal/compiler/implementation/resolution/members.dart
index 6e2eb36d246b2adf8e4d9c6e6bd92974ca001fea..d85930f45ae338162f69f2faf769d5d353fbcb7c 100644
--- a/sdk/lib/_internal/compiler/implementation/resolution/members.dart
+++ b/sdk/lib/_internal/compiler/implementation/resolution/members.dart
@@ -2294,6 +2294,7 @@ class ResolverVisitor extends MappingVisitor<Element> {
     if (node.isCall) {
       if (Elements.isUnresolved(target) ||
           target.isGetter() ||
+          target.isField() ||
           Elements.isClosureSend(node, target)) {
         // If we don't know what we're calling or if we are calling a getter,
         // we need to register that fact that we may be calling a closure