crash in snapshot: expected: object_id >= kMaxPredefinedObjectIds

[whesse]

The debug ia32 build of the VM currently crashes in
standalone/DirectoryTest if we change the line

      Map listingParameters = new Map();
to
      Map<String, Object> listingParameters = new Map<String, Object>();
in
runtime/bin/directory_impl.dart:60.

I did this because the VM is producing huge amounts of warnings like

Warning: class 'HashMapImplementation' in factory clause of interface 'Map' is missing its type parameter list.
Warning: class 'HashMapImplementation' in factory clause of interface 'HashMap' is missing its type parameter list.
Warning: class 'LinkedHashMapImplementation' in factory clause of interface 'LinkedHashMap' is missing its type parameter list.
Warning: class 'HashSetImplementation' in factory clause of interface 'Set' is missing its type parameter list.
Warning: class 'HashSetImplementation' in factory clause of interface 'HashSet' is missing its type parameter list.
Warning: factory method 'HashMapImplementation.from' should declare a list of 2 type parameters.
Warning: factory method 'LinkedHashMapImplementation.from' should declare a list of 2 type parameters.

[iposva-google]

Set owner to @a-siva.
Added Accepted label.

[a-siva]

http://codereview.chromium.org//8623003

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Added Fixed label.