Recognize const/fixed/growable arrays in simple types inferrer.

sdk/lib/_internal/compiler/implementation/elements/elements.dart

 // 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.
 
 library elements;
 
 import 'dart:uri';
 
 import 'modelx.dart';
 import '../tree/tree.dart';
@@ skipping 468 matching lines @@
     r = a.name.slowToString().compareTo(b.name.slowToString());
     if (r != 0) return r;
     // Same file, position and name.  If this happens, we should find out why
     // and make the order total and independent of hashCode.
     return a.hashCode.compareTo(b.hashCode);
   }
 
   static List<Element> sortedByPosition(Iterable<Element> elements) {
     return elements.toList()..sort(compareByPosition);
   }
+
+  static bool isFixedListConstructorCall(Element element,
+                                         Node node,
+                                         Compiler compiler) {
+    return element == compiler.unnamedListConstructor
+        && node.isCall
+        && !node.arguments.isEmpty
+        && node.arguments.tail.isEmpty;
+  }
+
+  static bool isGrowableListConstructorCall(Element element,
+                                            Node node,
+                                            Compiler compiler) {
+    return element == compiler.unnamedListConstructor
+        && node.isCall
+        && node.arguments.isEmpty;
+  }
 }
 
 abstract class ErroneousElement extends Element implements FunctionElement {
   MessageKind get messageKind;
   Map get messageArguments;
 }
 
 abstract class AmbiguousElement extends Element {
   MessageKind get messageKind;
   Map get messageArguments;
@@ skipping 343 matching lines @@
   int get resolutionState;
   Token get beginToken;
   Token get endToken;
 
   // TODO(kasperl): Try to get rid of these.
   void set annotatedElement(Element value);
   void set resolutionState(int value);
 
   MetadataAnnotation ensureResolved(Compiler compiler);
 }