adds array bounds checking

frog/gen.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.
 
 /**
  * Top level generator object for writing code and keeping track of
  * dependencies.
  *
  * Should have two compilation models, but only one implemented so far.
  *
@@ skipping 55 matching lines @@
 
     if (options.compileAll) {
       markLibrariesUsed(
           [world.coreimpl, world.corelib, main.declaringType.library]);
     }
 
     // These are essentially always used through literals - just include them
     world.numImplType.markUsed();
     world.stringImplType.markUsed();
 
+    if (corejs.useIndex || corejs.useSetIndex) {
+      if (!options.disableBoundsChecks) {
+        // These exceptions might be thrown by array bounds checks.
+        markTypeUsed(world.corelib.types['IndexOutOfRangeException']);
+        markTypeUsed(world.corelib.types['IllegalArgumentException']);
+      }
+    }
+
     // Only include isolate-specific code if isolates are used.
     if (world.corelib.types['Isolate'].isUsed
         || world.coreimpl.types['ReceivePortImpl'].isUsed) {
 
       // Generate callbacks from JS to isolate code if needed
       if (corejs.useWrap0 || corejs.useWrap1) {
         genMethod(world.coreimpl.types['IsolateContext'].getMember('eval'));
         genMethod(world.coreimpl.types['EventLoop'].getMember('run'));
       }
 
@@ skipping 2344 matching lines @@
     return true;
   }
 
 }
 
 class ReturnKind {
   static final int IGNORE = 1;
   static final int POST = 2;
   static final int PRE = 3;
 }