dart2js cps: Extend type masks to handle reflective invocations.

pkg/compiler/lib/src/js_backend/codegen/codegen.dart

 // Copyright (c) 2014, 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 code_generator;
 
 import 'glue.dart';
 
 import '../../closure.dart' show
     ClosureClassElement;
@@ skipping 254 matching lines @@
     List<js.Expression> arguments = visitExpressionList(node.arguments);
     return buildStaticInvoke(
         target,
         arguments,
         sourceInformation: node.sourceInformation);
   }
 
   void registerMethodInvoke(tree_ir.InvokeMethod node) {
     Selector selector = node.selector;
     TypeMask mask = node.mask;
+    mask = glue.extendMaskIfReachesAll(selector, mask);
     if (selector.isGetter) {
       registry.registerDynamicUse(new DynamicUse(selector, mask));
     } else if (selector.isSetter) {
       registry.registerDynamicUse(new DynamicUse(selector, mask));
     } else {
       assert(invariant(CURRENT_ELEMENT_SPANNABLE,
           selector.isCall || selector.isOperator ||
           selector.isIndex || selector.isIndexSet,
           message: 'unexpected kind ${selector.kind}'));
       // TODO(sigurdm): We should find a better place to register the call.
@@ skipping 804 matching lines @@
   void registerDefaultParameterValues(ExecutableElement element) {
     if (element is! FunctionElement) return;
     FunctionElement function = element;
     if (function.isStatic) return; // Defaults are inlined at call sites.
     function.functionSignature.forEachOptionalParameter((param) {
       ConstantValue constant = glue.getDefaultParameterValue(param);
       registry.registerCompileTimeConstant(constant);
     });
   }
 }