Improve exception handling:

dart/frog/leg/universe.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.
 
 class Universe {
   Map<Element, String> generatedCode;
   Map<Element, String> generatedBailoutCode;
   final Set<ClassElement> instantiatedClasses;
   final Set<FunctionElement> staticFunctionsNeedingGetter;
   final Map<SourceString, Set<Selector>> invokedNames;
@@ skipping 49 matching lines @@
   static final Selector BINARY_OPERATOR =
       const Selector(SelectorKind.OPERATOR, 1);
   static final Selector INDEX = const Selector(SelectorKind.INDEX, 1);
   static final Selector INDEX_SET = const Selector(SelectorKind.INDEX, 2);
   static final Selector INDEX_AND_INDEX_SET =
       const Selector(SelectorKind.INDEX, 2);
   static final Selector GETTER_AND_SETTER =
       const Selector(SelectorKind.SETTER, 1);
   static final Selector INVOCATION_0 =
       const Selector(SelectorKind.INVOCATION, 0);
+  static final Selector INVOCATION_1 =
+      const Selector(SelectorKind.INVOCATION, 1);
 
   bool applies(Compiler compiler, FunctionElement element) {
     FunctionParameters parameters = element.computeParameters(compiler);
     if (argumentCount > parameters.parameterCount) return false;
     int requiredParameterCount = parameters.requiredParameterCount;
     int optionalParameterCount = parameters.optionalParameterCount;
 
     bool hasOptionalParameters = !parameters.optionalParameters.isEmpty();
     if (namedArguments.isEmpty()) {
       if (!hasOptionalParameters) {
@@ skipping 61 matching lines @@
     if (!orderedNamedArguments.isEmpty()) return orderedNamedArguments;
 
     List<SourceString> list = new List<SourceString>.from(namedArguments);
     list.sort((SourceString first, SourceString second) {
       return first.stringValue.compareTo(second.stringValue);
     });
     orderedNamedArguments = list;
     return orderedNamedArguments;
   }
 }