Implement a few chunks of new mirror functionality. Many changes, notably:
- Added currentIsolateMirror() to provide non-async access to the
local isolate mirror.
- Added mirrorOf(o) to provide access to local instance mirrors.
- Fleshed out InstanceMirror, InterfaceMirror, and LibraryMirror to
various degrees.
- Added the MirroredError hierarchy, which lets the user handle Dart
errors of various sorts from invocation, etc.
- Introduce lazy resolvers for interface mirrors and library mirrors.
These allow us to build the self-referential library/interface
hierarchy without going mad.
- Added better toStrings all around.
- Extended the isolate_mirror_local_test to cover new functionality.
Other changes that were required or seemed prudent:
- Exposed the error hierarchy to the embedder. They need to be able
to distinguish different error types in some situations. Improved
the documetation around error handles and error propagation.
- Added new functions to the dart embedding api as required. Added
tests for all new dart api functions.
Review URL: https://chromiumcodereview.appspot.com//10538043
git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@8575 260f80e4-7a28-3924-810f-c04153c831b5
turnidge@google.com
312702a5ac