Convert property methods into getters.

sdk/lib/_internal/compiler/implementation/inferrer/list_tracer.dart

 // Copyright (c) 2013, 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.
 
 part of type_graph_inferrer;
 
 /**
  * A set of selector names that [List] implements, that we know do not
  * change the element type of the list, or let the list escape to code
  * that might change the element type.
@@ skipping 154 matching lines @@
       bailout('Used in JS ${info.call}');
     }
   }
 
   visitDynamicCallSiteTypeInformation(DynamicCallSiteTypeInformation info) {
     super.visitDynamicCallSiteTypeInformation(info);
     Selector selector = info.selector;
     String selectorName = selector.name;
     if (currentUser == info.receiver) {
       if (!okListSelectorsSet.contains(selectorName)) {
-        if (selector.isCall()) {
+        if (selector.isCall) {
           int positionalLength = info.arguments.positional.length;
           if (selectorName == 'add') {
             if (positionalLength == 1) {
               assignments.add(info.arguments.positional[0]);
             }
           } else if (selectorName == 'insert') {
             if (positionalLength == 2) {
               assignments.add(info.arguments.positional[1]);
             }
           } else {
             bailout('Used in a not-ok selector');
             return;
           }
-        } else if (selector.isIndexSet()) {
+        } else if (selector.isIndexSet) {
           assignments.add(info.arguments.positional[1]);
-        } else if (!selector.isIndex()) {
+        } else if (!selector.isIndex) {
           bailout('Used in a not-ok selector');
           return;
         }
       }
       if (!doNotChangeLengthSelectorsSet.contains(selectorName)) {
         callsGrowableMethod = true;
       }
-      if (selectorName == 'length' && selector.isSetter()) {
+      if (selectorName == 'length' && selector.isSetter) {
         callsGrowableMethod = true;
         assignments.add(inferrer.types.nullType);
       }
-    } else if (selector.isCall() &&
-               !info.targets.every((element) => element.isFunction())) {
+    } else if (selector.isCall &&
+               !info.targets.every((element) => element.isFunction)) {
       bailout('Passed to a closure');
       return;
     }
   }
 }