eebec2a081
Add debugger functionality to pause the VM whenever a TypeError or AssertionError exception happens. This is a first step towards breaking on handled and unhanded exceptions in general. We first need to generate more debug info for catch handlers so we can determine whether an exception will be handled or not before we unwind the stack to run the catch clauses. Review URL: https://chromiumcodereview.appspot.com//10537065 git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@8457 260f80e4-7a28-3924-810f-c04153c831b5