execution. This is achieved by storing a pointer to the C++ TryCatch when the
exception is thrown and checking that this is the handler active when leaving
JavaScript.
Review URL: http://codereview.chromium.org/8101

git-svn-id: http://v8.googlecode.com/svn/branches/bleeding_edge@570 ce2b1a6d-e550-0410-aec6-3dcde31c8c00