NO!!!!!
Nothing in the compiler should know anything about CTFE, except for the function ctfeInterpret().
In particular, the TOKthrownexception is an implementation detail of the current CTFE.  It's actually impossible for one of those guys to escape to the rest of the compiler.
Even TOKclassreference is subject to change, it's currently done in a very hacky way to avoid intrusive changes to the compiler.