Fixing @tag of core classes
Allowing subclassing List
Implemented (normal) super send.
Adding test for varargs
I was sleepy when I did c20786. Putting it back on.

The exception object is received on DebuggerUI's constructor from the
interpreter so we can tell the user what exception occurred.
Exception.value => Exception.message on memetest.mm
DebuggerUI showing vars with toSource
Object,Behavior,etc have no CompiledClasses to have as owner
Adding a few methods to core classes
This seems to be infinite recursing o.O
Controlling debugger execution on exception.

A stack of flags keep track of "catches" associated with the current
running code. Those flags indicate if the debugger should be fired or
not (ie, when there is no protection for the running
code). exception_unprotected() is used to "unflag" a certain function,
so that any code unprotected in it that raises will fire the debugger.
adding ometa module