The copyright and license notice is already in the LICENSE file. There
is no justifiable reason to also require that it be included in every
file, since the individual files are not individually distributed except
as part of the entire package.
Compiles and executes source code in V8's debugger context. Provides
a programmatic way to get access to the debug object by executing:
var Debug = vm.runInDebugContext('Debug');
Fixes#7886.
Reviewed-by: Trevor Norris <trev.norris@gmail.com>